Rear Cross-Member Bushing: Service and Repair

64.35.86 Bushes - rear subframe
Bushes must be changed in pairs, front LH and RH, or rear LH and RH. Not diagonally or individually.

Remove
1. Position vehicle on lift.
2. Raise rear of vehicle.

WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.

3. Remove rear road wheels.
4. depressurize suspension.





5. Remove rear propeller shaft.





6. Disconnect multiplugs from rear ride height sensors.





7. Remove Allen screws securing brake pipe clips to upper arms.
8. Release clips securing ABS and brake pad wear sensor leads to upper arms and body.
9. Release clips securing air suspension pipes to body.





10. Position jacks to support lower arms.

CAUTION: Do not allow suspension arm to hang unsupported on air spring.





11. Remove bolts securing dampers to lower arms.
12. Release fuel burning heater (FBH), fuel pump from rubber mounting.





13. Position jack to support rear sub-frame.
14. Remove 2 diagonally opposite sub-frame mounting bolts, collect cup washer and exhaust mounting bracket. Fit cup washer and mounting bracket to damper mounting bolts. Use damper bolts as slaves to support sub-frame.
15. Fit and finger tighten bolts to subframe. Engage bolts a minimum 16 mm.
16. Remove the 2 remaining sub-frame bolts.
17. Lower sub-frame for access to bushes.
18. Collect slotted spacers from mountings.





19. Note fitted position of bush and paint mark sub-frame.
20. Assemble LRT-51-024/7.
21. Fit remover LRT-51-024/8 to bush, position LRT-51-024/7 to sub-frame. Fit draw bar LRT-51-024/11 to LRT- 51024/8, align tools and remove bush.

Refit
1. Clean bush locations and mating faces.





2. Apply rubber lubricant to new bush and bore.
3. Position bush replacer LRT-51-024/10 to sub-frame.
4. Fit LRT-51-024/9 to LRT-51-024/1 1, fit new bush over draw bar.
5. Fit LRT-51-024/11 to LRT-51-024/10.
6. Position bush, align timing mark to paint mark on sub-frame.
7. Fit bush and remove tool assembly.
8. Repeat procedure on bush diagonally opposite.
9. Raise sub-frame to body remove slave damper bolts, fit through opposite bushes and finger tighten.
10. Lower sub-frame.
11. Remove and refit remaining bushes.
12. Fit 2 slotted spacers to available bushes. Raise sub-frame to body leaving sufficient gap to fit remaining spacers.
13. Fit 2 subframe mounting bolts with cup washer and exhaust bracket, do not tighten at this stage.
14. Remove slave bolts from sub-frame and collect cup washer and exhaust bracket.
15. Fit cup washer and exhaust mounting bracket to remaining sub-frame bolts. Locate spacers on bushes and fit bolts to sub-frame.
16. Locate sub-frame on dowels.
17. Tighten sub-frame bolts to 165 Nm (122 ft. lbs.). Ensure slotted spacers are correctly located to bushes prior to tightening.
18. Fit and secure FBH pump to mounting.
19. Fit bolts securing dampers to lower arms, do not tighten at this stage.
20. Fit and secure air suspension pipes to body.

CAUTION: Ensure timing marks on the air pipes are fitted to clips.

21. Fit and secure ABS and brake sensor leads.
22. Position brake pipes and secure clips.
23. Connect ride height sensor multiplugs.
24. Fit rear propeller shaft.
25. Pressurize suspension.
26. Fit rear road wheels and tighten nuts to 140 Nm (103 ft. lbs.).
27. Tighten lower arm damper bolts to 110 Nm (81 ft. lbs.).