- Loosen the wheel nuts and raise the rear of the vehicle on stands. The vehicle must be raised high enough to allow the rear axle to be rolled under the vehicle with the wheels in place.
- Trace the brake hose routing and unscrew the brake hose from the brake pipe. To do this, unscrew the union nut and disconnect the tube. Knock out the leaf spring and remove the hose together with the metal fastener. Figure 154 shows the connection of the brake hose to the tube. To prevent dirt from getting in, close the hose and tube with appropriate plugs.
- Also using Figure 154, disconnect the brake force regulator valve rod (4) from the rod (5).
Figure 154. When removing the rear axle, the following parts are unscrewed. 1. Brake hose; 2. Brake pipe; 3. Flat spring; 4. Brake force regulator control rod; 5. Brake force regulator actuator rod.
- Loosen the nut at the end of the handbrake cable on the cable equalizer lever and release the cable.
- Place a roller jack under the center of the axle and lift the rear axle until the shock absorbers are compressed. Unscrew the upper and lower shock absorber mounts and remove the shock absorbers.
- Check the reliability of the rear axle installation on the jack and unscrew the bolts of the front spring consoles and the bolts securing the springs to the earrings from the frame. There is no need to unscrew the nuts of the spring pins and spring shackles.
- Loosen the exhaust system fastening so that it does not interfere with the removal of the rear axle.
- Lower the rear axle using a jack and roll it out from under the car using a roller jack. Have an assistant hold the rear axle to prevent it from tipping over from the jack.
- Installation of the rear axle is made easier if you first unscrew the pin nuts and spring earring nuts.
- Place the rear axle on a roller jack under the vehicle and lift it until the rear consoles (1) in Figure 155 are flush with the contact surface on the body. Screw in the console mounting bolts, but do not tighten them.
Figure 155. Rear spring console (1) with spring suspension on earrings (2).
- In this case, center the console. Figure 152 shows two holes "a" and "b", two rods of a certain diameter are required for centering. Insert a 16 mm diameter rod into hole "a" and a 12 mm diameter rod into hole "b". Once the console is properly seated, tighten the bolts (1) to a torque of 50 Nm.
- Raise the bridge until the front spring console is flush with the body and tighten the bolts (1) in Figure 156 without tightening them. Check that all bolts are located in the middle of the slots and then tighten the bolts to a torque of 50 Nm.
Figure 156. The front spring console is attached to the body with bolts (1).
- Install shock absorbers. Do not tighten the bolts and nuts yet.
- Thread the brake hose through the hole in the corner and secure it with a clamp. Screw the union nut of the brake pipe into the hose and tighten it. Avoid twisting the hose. Connect the brake force regulator rods and the handbrake cable.
- To tighten the front and rear spring mounts, the rear suspension must be loaded. To do this, place a load in the vehicle so that the dimension "h" in Figure 157 between the adjacent surface of the rubber bump stop (1) and the contact surface "b" on the bridge is 107 mm. Use a tape measure to measure this.
Figure 157. Before tightening the spring suspension, the height "h" between points "a" and "b" must be set to a certain size.
- Tighten the rear leaf spring hanger nuts to 120 Nm and the front leaf spring pin nuts to 150 Nm.
- Unload the car. After installation is complete, the brake system must be bled. Adjust the handbrake. These work operations are described in the section "Brake system".