The UAZ Patriot SUV is designed to overcome various off-road conditions. But when the goal arises of overcoming not only off-road conditions, but also impassable routes and hilly areas, then this necessarily requires the installation of portal bridges. These devices have been known for a long time, but they have been gaining popularity recently, when candidates for testing portal bridges appeared. One of these contenders is the UAZ Patriot SUV; therefore, today we will pay attention to the purpose of the products, features and some models.

Portal bridges got their start back during the war, when designers were tasked with increasing the cross-country ability of vehicles. The task was not easy, but doable. Portal axles were invented, which involve placing the bridge axle higher than the wheel axle. This phenomenon was achieved by installing a special gearbox with gears into the bridge. Portal - they began to be called because of the spatial supporting structure.

This design finds application among fans of overcoming Offroad trails, which are becoming more and more popular every year. And now not only outdated UAZ Bukhanka or Niva, but also modern UAZ Patriot, Chevrolet Niva, etc. Thanks to this design, the UAZ Patriot SUV increases ground clearance, which is the main function of such units. Thanks to the use of several gearboxes in the design, the load on the transmission system is reduced without causing rapid wear.

Gearbox internals

If you are reading this material, it means that the idea has appeared in your head to tune your UAZ Patriot SUV by installing a portal unit. What are the pros and cons of replacing standard axles with portal axles?

1. First of all, the presence of a gearbox with gears will reduce the speed of the vehicle, to about 20%.
2. Now the SUV will accelerate three times longer, thanks to the same gearbox design.
3. Reduced vehicle controllability.

But along with the minuses, we also get inversely proportional pluses:

1. Improved geometric characteristics, which means better balance when driving on plains, hillocks, etc.
2. Increased traction characteristics.

But if we take into account that the main task of the designers was to ensure high cross-country ability of the car, without focusing on speed, then we can say that they coped with the task. Therefore, if you are going to the mountains in a UAZ Patriot SUV, then it is impossible to do without such devices.

In fact, only those motorists who are not afraid to risk their lives or their car install portal bridges.

Product Features

The installation of portal units not only improves cross-country ability, but also increases ground clearance, which is very important for overcoming various aggressive obstacles. By raising the axles above the ground, it becomes possible to install wheels of larger diameter, which is also important for overcoming obstacles on the road.

Thanks to the presence of a gearbox in the axle, transmission unloading is ensured. Participation in competitions to overcome obstacles will allow you to achieve victorious results. After all, competitors with conventional bridges have no chance of overcoming aggressive off-road conditions. In everyday life, the presence of such a device is not very popular, unless you live in a steppe or forest-steppe zone, where every day you have to drive your UAZ Patriot SUV through forests and hills. Thus, we can say that portal bridges are necessary when you are tired of suffering from daily slipping in fords.

Let's look at some options for portal units for the UAZ Patriot SUV.

Military bridges

During the war, a popular car was the UAZ Bukhanka SUV, which actually received its first military version. Today, more and more often, owners of the UAZ Patriot SUV are resorting to installing such products at their own expense. Military bridges are characterized by relatively low cost, simplicity of design and, most importantly, strength. After all, in wartime, the main thing was that the product did not fall apart while moving. Therefore, military products are still popular to this day, as they are quite reliable and practical.

But here a new snag appears, because it is almost impossible to get military bridges these days. New military units have not been produced by factories for a long time, so you can find them among advertisements. Of course, purchasing a device that has already been used is extremely risky, because there are no guarantees that military products will last a long time. Unless you take into account the fact that they were made to perfection.

If military bridges fall into disrepair, then it is not possible to repair them now. Therefore, if they fail, you will simply need to install a more modern version. Therefore, it’s up to you to decide whether you should strive to install military structures on the UAZ Patriot, but in the end you will still have to settle on modern, as they are called, collective farm options.

Bridges from the UAZ Bars SUV

The portal axles from the Bars SUV to the UAZ Patriot are military analogues, but only with a widened track. The track of the Bars design is expanded by 155 mm from its military counterparts, and is also calculated for spring types of suspensions.

Appearance car with Bars products

If there is a need to install portal units, then it is recommended to opt not for military ones, but for Bars designs, which perform well when driving on aggressive off-road conditions. To install “Bars” instead of the standard one, you will need to replace the cardan, and the mounting of the shock absorbers will also change. With the Bars bridge you can install wheels up to size 37, while the standard product has 29.5 inch tires.

Of course, the operation of the popular Russian SUV UAZ Patriot on longitudinal Bars bridges on city roads is not intended, since we have already said that speed characteristics cars are significantly reduced. But driving outside the city, on training grounds, in the steppe or mountains - all this is possible for an SUV with longitudinal Bars axles.

Of course, military bridges and Bars are not the only models for an SUV; foreign analogues are also known, such as:

• Pinzgauer, made in Germany;
• Unimogs, which are popular among Nivas;
• Tibus, the most popular products for all types of off-road vehicles.

Final drive TIBUS

The advantage of the latter option is that by installing such a unit, the speed of the car practically does not decrease. In addition, performance is maintained ABS systems, if available on Patrick. Therefore, if you have the funds, you can install a foreign analogue, but is it worth it? Bars bridges, unlike military ones, can be found in UAZ service centers. Installation of products is carried out independently if you have a hole in the garage and a set of tools.

To summarize, it should be noted that Bars portal bridges are the most popular units that show excellent results at competitions.

You can check your BMR and if you need to reduce it!

The topic about which bridges are better on a UAZ has probably been discussed more than once. Some are for civilians, some are for military bridges on the UAZ. Let's try to figure out a little what's what. Of course, UAZbuka will help us. There is enough information there. You can put together a small collage :)

Civil bridges on UAZ

Construction of UAZ bridges.

Two types of drive axles are used on UAZ vehicles: drive axles with a single-stage main gear - installed on UAZ-31512 utility vehicles and UAZ-3741, UAZ-3303, UAZ-3962 and UAZ-2206 carriage-type vehicles; U-shaped drive axles with final drive - installed on UAZ-3151 utility vehicles.

Installation of U-shaped drive axles (complete front and rear) on UAZ-31512 vehicles is possible with the simultaneous installation of cardan shafts of the UAZ-3151 vehicle. The installation of U-shaped axles with final drives on a family of wagon-type vehicles requires significant modification of the design of the bridges, bipod, bipod linkage, vehicle suspension, manufacturing of driveshafts shortened by 10 mm, and cannot be done outside the factory (without its recommendations).

Drive axles with single-stage main gear. The middle part of the front and rear axles has the same structure (Fig. 1).


Rice. 1 UAZ rear axle diagram
1 - safety valve; 2 - differential bearing; 3 - adjusting shims; 4 - rear drive gear bearing (single-row roller); 5 - adjusting ring; 6 - oil removal ring; 7 - nut; 8 - package of adjusting shims; 9 - drive gear; 10 - front drive gear bearing (double-row bevel roller); 11 - thrust washer; 12 - driven gear;

The crankcase is cast and split in a vertical plane. Axle shaft housings are pressed into both halves of the crankcase and additionally secured with electric rivets. The main gear drive gear is mounted on two bearings: a double tapered roller bearing 10 located in the crankcase neck, and a cylindrical roller bearing 4 located in the crankcase boss. An adjusting ring 5 for the position of the drive gear is installed between the end of the outer ring of the double tapered bearing and the crankcase. The double tapered bearing is adjusted with a pack of 8 shims. The driven gear is attached to the flange of the gearbox with special bolts. Bevel differential with four satellites. The satellite box is detachable and consists of two halves connected by bolts. The gears of the differential axle shafts have replaceable thrust washers 11. The differential is mounted on two tapered roller bearings 2, and adjusting shims are installed between the ends of the gearbox and the inner rings of the differential bearings. An oil removal ring 6 is installed between the drive gear flange and the double tapered bearing.

Safety valves 1 are located on the left axle housings to prevent pressure build-up in the axle housings.

Trunnions with flanges for attaching brake shields are butt welded to the outer ends of the rear axle axle housings (Fig. 2).

Rice. 2 Rear wheel hub.
1 - brake drum;
2 - wheel disk;
3 - cuff;
4 - lock washer;
5 - lock nut;
6 - axle shaft
7 - axle;
8 - gasket;
9 - bearing;
10 - hub;

Wheel hubs front and rear axles are the same (see Fig. 2). On UAZ-31512 and UAZ-3151 vehicles, the wheel hubs are not interchangeable. Bearings and their fastening parts are interchangeable. On carriage-type vehicles, the hubs of the UAZ-31512 vehicle are installed. Each hub is mounted on two identical tapered bearings 9. The outer rings of the bearings are pressed into the hubs and are held against axial movements by thrust rings. The inner rings of the bearings are mounted freely on the journal. The bearings are tightened with two nuts and locked with a lock washer 4 installed between the nuts. Between the inner ring of the outer bearing and the nut there is a thrust washer with a protrusion that fits into a groove on the journal.

To prevent lubricant from leaking out of the hub and dust, dirt and water getting into it, reinforced rubber cuffs 3 with assembled springs are installed on the inner end. A thrust washer is installed between the cuff and the inner bearing to prevent damage to the working edge of the cuff when removing the hub.

The outer ends of the front axle axle housings end with flanges to which ball joints 3 are bolted (Fig. 3).


Rice. 3 Rotating axle of the front axle of the UAZ 31512
1 - steering axle lever; 2 - axle housing; 3 - rubber cuff in a metal casing; 4 - gaskets; 5 - ball joint; 6 - steering axle body; 7 - support washer; 8 - king pin cover; 9 - kingpin; 10 - press oiler; 11 - locking pin; 12 - axle; 13 - wheel hub; 14 - leading flange; 15 - wheel release clutch; 16 - coupling bolt; 17 - locking ball; 18 - protective cap; 19 - pin bushing; 20 - gaskets; 21 - inner ring of the oil seal; 22 - partition ring; 23 - outer ring; 24 - rubber cuff; 25 - outer sealing felt ring; 26 - thrust washers; 27 - adjusting bolt for limiting wheel rotation; 28 - wheel rotation limiter; I - right steering knuckle; II - left steering knuckle; III - the front hubs are disabled; a - signal groove;

On ball bearings on kingpins 9 there are 6 rotating axle housings, to the ends of which axles 12 and brake shields are bolted. Inside the ball joints there are constant velocity joints, at the outer ends of which there are devices installed that allow the shafts to be connected or separated as necessary with the hubs of the front wheels.

"Military" UAZ bridges

Drive axles with final drives. The middle part of drive axles with final drives differs from the axles described above in the smaller size of the differential and the cantilever installation of the main drive drive gear on two tapered roller bearings 5 ​​and 7 (Fig. 4).


Rice. 4 Rear axle of the UAZ-3151
1 - crankcase cover 2 - differential bearing 3, 13 and 49 - shims 4 and 23 - sealing gaskets; 5 and 7 drive gear bearings, 6 - adjusting ring, 8 and 42 - cuffs, 9 - flange. 10 - nut, 11 - dirt deflector. 12 - support washer, 14 - spacer sleeve, 15 - adjusting ring for drive gear position, 16 - drive gear, 17 - satellite, 18 and 57 - axle shafts; 19 - final drive housing; 20 and 29 - oil deflectors, 21 - ball bearing, 22 and 26 - retaining rings, 24 - final drive housing cover, 25 - roller bearing, 27 - brake shield, 28 - brake drum, 30 - wheel mounting bolt, 31 - axle , 32 - hub bearing, 33 - gasket, 34 - lock washer, 35 - drive flange, 36 - hub bearing nut and locknut, 37 - bearing thrust washer, 38 - bushing; 39 - final drive driven shaft, 40 - thrust rings of bearings, 41 - gaskets; 43 - driven shaft bearing, 44 - final drive driven gear, 45 - driven shaft bearing mounting nut, 46 and 50 - plugs drain holes, 47 - final drive drive gear, 48 and 56 - satellite boxes, 51 - crankcase, 52 - axle gear washer, 53 - axle gear, 54 - satellite axis, 55 - main drive driven gear

An adjusting ring 15 of the drive gear is installed between the end of the drive gear and the inner ring of the large bearing, and a spacer sleeve 14, an adjusting ring 6 and shims 13 are installed between the inner rings of the bearings. The bearings of the drive gear are tightened with a nut 10 securing the flange.

Final drives of the rear drive axle located in crankcases, whose necks are pressed onto the outer ends of the axle housings and secured with electric rivets. The drive gear 47 is installed on the splined end of the axle shaft 48 between ball 21 and roller 25 bearings. The ball bearing is secured by a retaining ring 22 in the final drive housing. An oil deflector 20 is located between the crankcase and the ball bearing. The roller bearing is installed in a removable housing, which is attached to the crankcase boss with two bolts. The inner ring of the roller bearing is secured to the axle shaft with a retaining ring 26.

The final drive driven gear 44 is centered on the collar of the driven shaft 39 and is bolted to its flange. The driven shaft rests on a sleeve 38 and a roller bearing 43, which is secured to the shaft with a nut 45, which is opened after tightening into the groove of the shaft. The driven shafts of the right final drives and the bearing nuts have a left-hand thread. To differentiate, nuts with left-hand threads have an annular groove, and driven shafts have a blind hole dia. 3 mm at the end of the shaft. The driven shafts of the rear final drives are connected to the wheel hubs by splined flanges 35.

The final drives of the UAZ front drive axle are located in rotary axles (Figure 5 bridge diagram)


Rice. 5 Rotating axle of the front axle of the UAZ-3151 car
1 - rubber cuff in a metal casing, 2 - ball joint, 3 - constant velocity joint, 4 - gaskets, 5 - grease fitting, 6 - king pin, 7 - king pin cover, 8 - axle housing, 9 - king pin bushing, 10 - ball bearing, 11 - final drive driven shaft, 12 - hub, 13 - air flange, 14 - clutch, 15 - retainer ball spring, 16 - protective cap, 17 - clutch bolt, 18 - trunnion, 19 - lock nut, 20 - support washer, 21 - drive gear, 22 - locking pin, 23 - thrust washer, 24 - collar, 25 - support washer, 26 - axle housing, 27 - rotation limit bolt, 28 - wheel rotation limiter, 29 - trunnion lever, I…III, a - the same as in Fig. 112

The final drive housings are cast integrally with the axle housings. The drive gear is installed on the splines of the driven knuckle of the hinge between the ball and roller bearings and is secured together with the roller bearing with a nut 19, which, after tightening, is drilled into the groove of the shaft. The ball bearing is installed in the new axle housing in a cage with an outer flange that absorbs the axial loads of the hinge through the bearing. At the outer ends of the driven shafts of the front final drives, devices are installed that allow connecting or disconnecting the shafts with the hubs of the front wheels as necessary.

What axles are installed on different models of UAZ cars?

On all wagon-type cars (““, “and”, “farmers”), on “long goats” (3153*), as well as on most “classic goats”, so-called “civilian” ones are installed (they are also “regular”, “ collective farm") bridges. Some of the “goats” (models with indexes -03x) are equipped with “military” (also known as “geared”, “two-stage”, “U-shaped”) bridges. The “new goats” (316*) are equipped with Spicer-type axles with a one-piece crankcase. On vehicles "" (3159*) and 316* with an increased track, "long military" axles are installed, i.e. geared ones with elongated stockings.

Differences between military bridges and civilian ones.

A military bridge differs from a regular bridge by the presence of final drives. Due to the presence of gearboxes, the bridge is raised relative to the wheel axis by 4 cm, which increases the vehicle's ground clearance (the distance from the ground to the bottom point of the bridge). The main pair is smaller in size (the military axle housing “hangs” 4 cm less than the civilian axle). The main pair has fewer teeth, and they larger size- this increases the reliability of military bridges compared to civilian ones. The gear ratio of military axles is 5.38 (=2.77*1.94 - the gear ratios of the main and final drives, respectively) - more high-torque, but less high-speed than conventional axles.
Rear cardan shaft for military bridges is 1 cm shorter than for civilian ones!

Advantages of military bridges compared to civilian ones:

— ground clearance 30 cm (versus 22 cm for civil bridges); According to the latest measurements, a difference of 8 cm is observed only when Y-192 rubber is used on military bridges. With identical wheels, the difference is only 6 cm (gain on the gearboxes - 40 mm. Gain on the dimensions of the differential housing - 20 mm Total: 60 mm.)
- more “torque” (torque) - for transporting heavy loads, towing, driving at low speeds in mud;
— more reliable due to the larger size of the teeth of the main pair;
— more reliable due to uniform load distribution between the main and final drives;
— were developed, among other things, for “escorting a tank column” and approved by the USSR Ministry of Defense.

In the military there is a differential high friction. Those. if you are stuck in the mud with one wheel of the axle or you are standing on ice with one half and one half is slipping and the other is not (this is how a regular differential works). To prevent this from happening, military bridges were invented. So military bridges are much better off-road.

GP gear ratio (total: GP 2.77 + final drives 1.94): 5.38
Ground clearance: 300 mm (with tires Ya-192 215/90 R15 (31 x 8.5 R15)
Track: 1453 mm

Left to photo UAZ on civilian bridges and on the right - UAZ on gear axles — « warriors«.

Advantages of civilian bridges compared to military ones:

- less weight (more comfortable ride and (physically) easier to repair);
- fewer parts - easier and cheaper repairs;
— installation of serially produced self-locking differentials is possible;
- installation possible spring suspension(see also note);
- at the same speed, the engine is less “spinned” due to the smaller gear ratio;
- less noisy (since the final drives of military bridges are straight-toothed, and they make more noise);
- more accessible and cheaper spare parts. parts;
— gasoline consumption, all other things being equal, is less;
- fewer lubrication points - easier maintenance and less oil is needed.

UAZ is a fairly common and widely famous car, which has increased level cross-country ability. Such a car can often be found among Soviet car enthusiasts. This is due to the fact that the unit was first created at the Ulyanovsk Automobile Plant. It has increased technical characteristics. Naturally, the initial configuration of such a unit was not very different from the modern modification. However, manufacturers do not stop there and develop this type vehicle, which allows you to achieve incredible results.

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History of the car

According to statistical and analytical data, approximately 50% of domestic motorists own such a vehicle. Many of them repeatedly ask the question: what is the difference between military UAZ bridges and civilian ones? To cover this broad topic, it is necessary not only to study historical information, positive and negative aspects, but also to understand the non-standard nuances and differences of such components.

The legendary and widely known 469 UAZ was created on the basis of the GAZ 69 by order of the Ministry of Defense during the initial military operations. At that stage of development of this unit, tasks were set related to the creation of a new SUV that would have a military purpose and possess several qualities:

• light weight;
• increased cross-country ability;
• dynamism;
• simple maintenance;
• increased level of performance characteristics;
• low cost.

A few years later, the UAZ was released, which today is widely used in agriculture and is characterized by an increased level of cross-country ability and endurance. In connection with the creation of almost two types of vehicles, Ulyanovsk automobile plant decided to create two types of bridges for the unit, which would have military and civilian purposes. Historically, specialized bridges for these units were popularly known as:

• “collective farm” are those that were used for civilian vehicles;
• portal and geared - were called specialized bridges for military vehicles.

Difference between bridges

First of all, every user of this unit must understand that specialized military axles have a specialized final drive, which is located between the axle shaft and the hub in an additional housing.

Advantages of military bridges:

1. stock ground clearance, which is 8 cm higher than standard;
2. uniform load distribution between main couple and a gearbox, which increases the vehicle’s maneuverability and ensures its reliability;
3. according to the size of the teeth of the main pair. Exceeds the standard several times;
4. increased torque at low revs engine;
5. the unit does not lose cross-country ability when taking on additional weight;
6. not too sensitive to oils that are poured into the gearbox;
7. resistant to temperature changes;

Such advantages of military bridges have a positive effect on the vehicle.

If UAZ owners install military axles on a civilian vehicle, then some negative situations arise, namely:

• complex installation of components;
• frequent adjustment of king pins;
• excessive noise while the vehicle is moving;
• it is important to select the correct oil;
• carry out maintenance in a timely manner.

These are the problems that are considered the most common. Thus, before installing portal axles on a “collective farm” vehicle, you need to first think about how exactly to avoid negative situations.

Advantages of civil bridges:

1. moderate weight;
2. reduction in fuel consumption;
3. affordable repairs in relation to the price category;
4. absence of excessive noise;
5. comfort;
6. reduced oil consumption.

Naturally, many modern car owners who prefer foreign cars claim that this specific vehicle is not suitable for driving in an urban environment. However, if you need to drive near mountains, fields or in other non-standard conditions, then find the best cross-country vehicle domestic production almost impossible.

To change or not to change?

Experienced specialists service centers owners of “collective farm” UAZ vehicles are not recommended to use military bridges. No need to increase consumption cash to eliminate various malfunctions that may be caused by these changes in the system. In other words, we can say that specialized military bridges differ from civilian ones in that they increase the maneuverability and stability of a vehicle in various conditions. Therefore, if the owner of this vehicle needs to increase performance characteristics car, then it is extremely necessary to replace civilian bridges with military ones.

UAZ is an SUV that is an ideal vehicle for traveling around the countryside, as well as in the autumn-spring period. This is due to the fact that the unit has four-wheel drive. The car is widely used by hunters, fishermen and tourists. If various malfunctions occur in the relations of this vehicle, it is recommended to contact experienced professionals at a service station, where a comprehensive technical inspection car and eliminated various faults.

Review of the UAZ military bridge

The familiar GAZ 69 served for the benefit of the people for a long time. This is a bit of an all-terrain vehicle that needed a change. The Ulyanovsk Automobile Plant began preparing the release of a new car, which replaced this all-terrain vehicle.

History of the creation of bridges on the UAZ

Front and rear UAZ axle

The task was serious and difficult, but they still began to solve it. The main customer for such transport was the Ministry of Defense. The military wanted to have a vehicle that could be lightweight, off-road, dynamic, and capable of moving where only a tank could do it. But at the same time, it should be inexpensive, easy to use, technologically advanced, and have simple repairs. There was also a need for such cars in the national economy, due to the fact that the roads left much to be desired.

The designers created two bridges: civil and military. They are installed on UAZ-produced vehicles.

Civil bridges are called “collective farm” bridges. Fixed on such vehicles as “loaf”, “tadpole”, “goat”, long and classic, “farmer”.

The military bridge is a geared, two-stage, U-shaped bridge. They are installed on some samples of “goats” with an indicator of 0.3X. The new “goats” (316*) are equipped with axles of the “spicer”, “leopard” (3159*) and 316* types with a raised track - elongated military ones, geared with extended stockings.

Distinctive features of UAZ with military bridges

The military bridge has final drives. This makes it possible to increase the vehicle's ground clearance. They are reliable, since the main pair has larger teeth, but their quantitative composition is smaller than that of civilian bridges.

This is what military bridges look like

The purpose of military bridges is that they are able to move effortlessly through mud and deep ruts. Therefore additional ground clearance a military bridge of 8 cm made it possible for such vehicles to move off-road. The increased torque in off-road conditions was also a huge plus and help. The speed of such a vehicle, especially on the highway, is reduced, and a vehicle with a military bridge will not be able to accelerate more than 90 km/h. The UAZ is not intended for road racing; it exists for driving on broken roads.

There are myths created by car enthusiasts themselves regarding noise, rolling, speed limit, consumption of military bridges:

1. The UAZ car allows movement with sufficient high speed, if the spare parts of its bridge are of high quality assembly and the main connections are well tightened.
2. Only a faulty front or rear axle car, regardless of whether it is military or not.
3. Military bridges have excellent run-up. Regardless of its type, only a non-working one can have difficulty with the freewheel.
4. Military personnel can be much more economical than collective farm bridges. Consumption is entirely determined by the high-quality operation of the engine and the serviceability of the bridge.

The diametric steering rod is straight and short, it is located from one wheel to the other. This detail of the military man cannot be replaced by the draft from the collective farmer. You can buy a “warrior” without autotraction at front axle.

A rod purchased separately must be attached before rolling in the axle so that the hubs do not move apart later.

Our automotive industry produces two types of steering bipods: the first in Yekaterinburg, the second in Nizhny Novgorod. This spare part installed in the left steering knuckle.

The bipod is made of solid metal, by milling, without welding elements. If a new bipod is installed, you don’t need to think that the steering forces will change, they remain optimal. During the installation process, the bipod is cleaned, lubricated and fasteners are tightened in accordance with the manufacturer's instructions for adjusting UAZ vehicles.

Features of brake shields and subtleties

When the front axle requires repairs, you need to pay attention to the brake shields.

The front and rear shields of military and civilian bridges are different from each other. Military ones can be installed on collective farm bridges, and the latter can only be modified.

Distinctive features shields:

1. The closest mounting hole of the collective farmer is located exactly under brake cylinder, the brake assembly of the military bridge does not have such precision and is located between the holes. The brake disc will move a little to the side and down; when pumping, a particle of air remains in the corner of the cylinder, and difficulties will arise.
2. Landing hole. Their dimensions on the bridges are the same, but the landing is slightly different; in this case, the collective farm bridge will rest against the sides of the axle.
3. Stamping. The military bridge has a positive offset of 4 mm. The central plane is 4 mm lower than the outer side. If the “collective farm” is installed in place of the “warrior”, the brake drum will jam on the brake shield. In a UAZ car with a military bridge, the landing center will be lower than the outer side by the same 4 mm.

The clearance of the improved UAZ has increased significantly

Many car enthusiasts dream of such an SUV. But to buy it, be it new or used, you need to pay attention to such subtleties as:

• year of production, color version, mileage, price;
• technical condition of the car body: corrosion, use of anticorrosive;
• car roof inspection. which will help you find out whether it is factory made or remade with your own hands;
• bridge category: gearbox, “collective farmer” or “spicer”;
• the amount of fuel and oil consumption for the engine;
• suspension type: leaf spring, spring;
• power steering;
• the seller’s opinion about the condition of his car;
• car tuning;
• issue with license plates, chassis and engine license plates;
• the presence of other UAZ car owners with a military bridge;
• PTS - registration at the place of residence;
• admissibility of deregistration/registration.

All this information can be obtained by calling the car owner who is going to sell the car.

The right choice when purchasing

Inspection of UAZ cars with military bridges in the parking lot when making a choice to purchase a used car.

A large number of faults can be eliminated without any effort or consequences - spare parts for such vehicles can always be found at dismantling yards, in car shops and markets. When checking, the engine should start and there should be no blue or black exhaust from the pipe. Listening to the engine in different operating modes, paying attention to noises and squeaks is a must. You need to look for oil leaks under the engine - it should be dry under the car.

A thorough diagnosis is required before purchasing

The lubrication system is checked using a dipstick; the oil cannot contain additives or formations. The top-up level is maximum.

The cooling system is checked by fixing the liquid in the conservator. The appearance of the radiator and engine must be free of smudges and stains. Temperature the motor is kept at a constant level.

To evaluate a generator, you need to idling press the gas pedal. Based on the indicators, you can judge the mileage of the car. If high mileage, more than 80,000 km, then it is simply necessary to check the compression. It is advisable to perform this procedure when the engine is shaking or pulling poorly. You can compare readings using the operating instructions.

The corrosiveness of the body plays a huge role for the driver who has decided to purchase a UAZ with military axles.

Floor connections, swivel brackets, framing windshield, plastic suspension, space under the pedals, sills where small debris and condensation accumulate, body skirt rear lights- all this can be found when buying a used UAZ car.

Steering device - check for play and jamming on site. There can be no noise or squeaks when changing gears; the gearbox must allow you to engage gears without them falling out.

The pivots should be without play; to check, you need to rock the front wheels by the top.

Checking the brakes is to ensure that when you press the pedal they work in a certain mode; the car should not skid to the side.

Cardan play may appear when it rotates. Otherwise there can be no play. Anyone can buy a UAZ, but not everyone will understand how to repair it and what spare parts are needed for this.

UAZ vehicles are traditionally equipped with so-called collective farm and “military” bridges. What is the specificity of both?

What are “collective farm” bridges on UAZs?

The bridges in question are also referred to as “civil” bridges. These designs ensure that torque is transmitted through the differential and axle shaft directly to the wheel hubs. “Collective farm” bridges are characterized by:

1. small weight;
2. simplicity of design, low cost of repair and maintenance;
3. the possibility of installing differentials with a self-locking function;
4. low noise level;
5. functionality that assumes moderate dynamics of vehicle fuel consumption.

According to motorists, a UAZ with “collective farm” axles ensures fairly high vehicle stability on the road and also copes well with braking. These bridges allow you to achieve good cross-country ability of the vehicle. A decent maximum speed of the car is maintained - about 100 km/h.

An alternative to “collective farm” bridges is most often “military” bridges. Let's consider their specifics.

What are “military” bridges on UAZ vehicles?

These mechanisms provide torque transmission using a special gearbox. Therefore, “military” bridges are often also called geared ones.

Their main advantages:

1. functionality, which implies an increase in vehicle clearance by approximately 8 cm in comparison with “collective farm” bridges;
2. higher torque when driving a car at low speeds off-road;
3. uniform load distribution between the gearbox and the main pair, thereby increasing the reliability of the bridge.

However, the main advantage of the “military” bridge is its ability to guarantee exceptionally high cross-country ability of the vehicle. At the same time this advantage is ensured not only due to ground clearance, but also due to more efficient distribution of torque across the wheels.

A car with a “military” bridge goes uphill better. Thus, a UAZ, on which the appropriate mechanism is installed, can, in principle, overcome a rise with an inclination of about 50% without any problems. In turn, it is better not to try to storm such obstacles in a car with a “collective farm” bridge.

The installation of a “military” bridge on a UAZ predetermines a slight increase in gasoline consumption in a car - by about 1-1.5 liters per 100 km. In addition, there may be additional costs for servicing the machine. Maximum speed the “iron horse” with the “military” bridge decreases slightly - to 90 km/h.

A UAZ with a “military” bridge also somewhat reduces the vehicle’s stability on the road and when braking. This is due to the increased running-in shoulder due to the presence of wheel gearboxes in the design of the mechanism under consideration.

Comparison

The main difference between “collective farm” bridges and “military” ones on UAZ vehicles is that the former do not have a gearbox in their design. On the second, the corresponding mechanism is installed. Hence the difference between the key characteristics of cars on which “collective farm” and “military” bridges are installed in the aspect:

1. speed;
2. stability on the road;
3. cross-country ability;
4. ability to climb uphill;
5. clearance values;
6. gasoline consumption.

Having determined what the difference is between “collective farm” and “military” bridges on UAZ vehicles, we will record the conclusions in a small table.

Table

"Collective farm" bridges	"Military" bridges
Does not have a gearbox	Have a gearbox
Provides vehicle speed of about 100 km/h	Provides vehicle speed of about 90 km/h
Guarantees higher vehicle stability on the road	Gives less stability to the car
Provides good vehicle cross-country ability	Provide very high cross-country ability
Doesn't always ensure efficient lifting of the car uphill	It is quite easy to lift the machine uphill at an inclination of about 50%.
Does not significantly increase ground clearance	Increases ground clearance by approximately 8 cm compared to “collective farm” bridges
Assume moderate dynamics of gasoline consumption by car	It is expected that gasoline consumption will increase by approximately 1-1.5 liters per 100 km