Rear Axle
DRIVESHAFT ASSEMBLYREMOVAL AND INSTALLATION
CAUTION
^ When removing and installing the rear wheel speed sensor, make sure that the sensor head at the end does not contact with surrounding parts to avoid damage.
^ During maintenance, take care not to contact the parts or tools to the caliper because the paint of caliper will be scratched. And if there is brake fluid on the caliper, wipe off quickly.
^ The parts indicated by *1 should be temporarily tightened, and then fully tightened with the vehicle standing on the ground and the curb weight condition.
^ The part indicated by *2 is the nut with friction coefficient stabilizer. In removal, ensure there is no damage, clean dust and soiling from the bearing and thread surfaces, and tighten them to the specified torque.
Pre-removal & Post-installation Operation:
Removal Steps 1-14:
Required Special Tools:
^ MB990242: Puller Shaft
^ MB990244: Puller Bar
^ MB990767: Front Hub and Flange Yoke Holder
^ MB990998: Front Hub Remover and Installer
^ MB991000: Spacer
^ MB991354: Puller Body
^ MB991897 or MB992011: Ball Joint Remover
REMOVAL SERVICE POINTS
[A] REAR DRIVESHAFT NUT REMOVAL
CAUTION
Do not apply the vehicle weight on the rear wheel hub assembly with the driveshaft nut loosened. Otherwise, the wheel bearing will be broken.
Use special tool MB990767 to fix the hub and remove the rear driveshaft nut.
[B] SELF-LOCKING NUT REMOVAL
CAUTION
^ Loosen the self-locking nut (trailing arm ball joint, control link ball joint, and knuckle connection) from the ball joint, but do not remove here. Use the special tool.
^ To prevent the special tool from dropping off, suspend it with a cord.
^ If the dust cover is damaged during operation, replace the dust cover.
1. Install special tool MB991897 or MB992011 as shown in the figure.
2. Turn the bolt and knob to make the special tool jaws parallel, then hand-tighten the bolt. After tightening, check that the jaws are still parallel.
NOTE: To adjust the special tool jaws to be parallel, set the orientation of the knob as shown in the figure.
3. Tighten the bolt with a wrench to disconnect the ball joint connection.
[C]REAR DRIVESHAFT ASSEMBLY REMOVAL
1. If the rear driveshaft assembly is seized with the rear wheel hub assembly, use special tools MB990242 and MB990244, MB990767 and MB991354 to push the rear driveshaft assembly out from the rear wheel hub assembly.
CAUTION
^ Never pull out the rear driveshaft assembly from the EBJ assembly side. Otherwise, the ETJ assembly may be damaged. Always pull out from the ETJ side with a lever.
^ Care must be taken to ensure that the oil seal of the rear differential carrier assembly is not damaged by the spline part of the rear driveshaft assembly.
2. Insert a lever between the rear differential carrier assembly and rear driveshaft assembly, and then pull the rear driveshaft assembly out from the rear driveshaft assembly.
CAUTION
^ Do not apply the vehicle weight to the rear wheel bearing with the rear driveshaft assembly removed.
^ If, however, the vehicle weight shall be applied to the bearing (in order to move the vehicle), tighten the following special tools MB991000 and MB990998 to the specified torque 144 - 176 Nm (107 - 129 ft-lb)
INSTALLATION SERVICE POINTS
[A] REAR DRIVESHAFT ASSEMBLY INSTALLATION
CAUTION
Care must be taken to ensure that the oil seal of the rear differential carrier assembly is not damaged by the spline part of the rear driveshaft assembly.
[B] SELF-LOCKING NUT INSTALLATION
Support the transaxle jack with a wooden block, raise the control link or trailing arm using a jack, and then tighten the self-locking nut.
[C] WASHER/REAR DRIVESHAFT NUT INSTALLATION
CAUTION
Do not apply the vehicle weight on the rear wheel bearing before fully tightening the rear driveshaft nut. Otherwise, the rear wheel bearing may be broken.
1. Be sure to install the rear driveshaft washer in the illustrated direction.
2. Using special tool MB990767, tighten the rear driveshaft nut. At this time, tighten the nut to the specified lower limit torque so that the pin hole may align with cotter pin.
Tightening torque: 144 - 176 Nm (107 - 129 ft-lb)
3. If the pin hole does not align with the pin, tighten the driveshaft nut [less than 176 Nm (129 ft-lb) and find the nearest hole, then fit the cotter pin.