Dual Wheel Spring Assembly

REMOVAL PROCEDURE
1. Raise the vehicle on a hoist. Support the rear axle independently in order to relieve the tension on the leaf springs.





2. Remove the U-bolt nuts (6).
3. Remove the washers (5).
4. Remove the anchor plate (7).
5. Remove the U-bolts (1),(4).
6. Remove the spacer (8). Loosen the shackle to spring nut.
7. Remove the following parts:
^ The shackle (3)
^ The shackle to rear bracket nut
^ The washers
^ The bolt
8. Remove the spring to front bracket.
9. Remove the following spring to front bracket parts:
^ The nut
^ The washers
^ The bolt





10. Remove the spring assembly from the vehicle.

INSTALLATION PROCEDURE





1. Install the spring assembly to the vehicle.





2. Install the following spring to front bracket parts:
^ The bolt
^ The washers
^ The nut
- Do not tighten the nut.
3. Install the following parts:
^ The shackle (3)
^ The shackle to rear bracket bolt
^ The washers
^ The nut
- Do not tighten the nut.
4. Install the spacer

Important: Do not use old U-bolts.

5. Install the new, Unbolts (1, 4) to the top of the spring.
6. Install the anchor plate (7).
7. Install the washers (5).





8. Install the nuts (6).

Tighten
8.1. Tighten the U-bolt nuts in the sequence shown.
8.2. Tighten the U-bolt nuts to 110 Nm (81 ft. lbs.).
8.3. Adjust the spring height between the top surface of the axle jounce pad and the bottom surface of the frame jounce bracket.
8.4. Tighten the leaf spring to bracket nuts to 95 Nm (70 ft. lbs.).
8.5. Tighten the leaf-spring to shackle nut to 95 Nm (70 ft. lbs.).
8.6. Tighten the shackle to bracket nuts to 95 Nm (70 ft. lbs.).

NOTICE: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.