Rear Suspension
Spring
Removal and Installation
NOTICE: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure may result in major service expense. New parts must be installed with the same part numbers or equivalent parts if replacement is necessary. Do not use replacement parts of lesser quality or substitute design. Torque values must be used as specified during reassembly to make sure of correct retention of these parts.
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.
2. Using a suitable jack, support the rear axle.
3. Remove and discard the lower shock absorber bolt and nut.
- To install, tighten the new nut to 80 Nm (59 lb-ft).
4. NOTE: When installing new U-bolts, the distance between the U-bolts should be 93 mm (3.66 in)± 3 mm (0.12 in). This is important for providing the correct U-bolt clamp load and retention of parts.
Remove and discard the 4 rear U-bolt nuts.
- Remove the U-bolts and the spring plate.
- To install, tighten the U-bolt nuts in 4 stages.
- Stage 1: Tighten in a cross pattern to 30 Nm (22 lb-ft).
- Stage 2: Tighten in a cross pattern to 60 Nm (44 lb-ft).
- Stage 3: Tighten in a cross pattern to 90 Nm (66 lb-ft).
- Stage 4: Tighten in a cross pattern to 115 Nm (85 lb-ft).
5. If equipped, carefully lower the rear axle and remove the rear spring spacer.
6. Remove and discard the spring-to-frame bracket bolt and flagnut.
- To install, tighten the new bolt to 200 Nm (148 lb-ft).
7. Remove and discard the spring shackle-to-spring bolt and nut and remove the spring.
- To install, tighten the new nut to 133 Nm (98 lb-ft).
8. If necessary, remove the spring shackle.
- Remove and discard the spring shackle-to-frame bracket bolt and flagnut.
- Remove the shackle.
- To install, tighten the new bolt to 115 Nm (85 lb-ft).
9. To install, reverse the removal procedure.