REMOVAL & INSTALLATION
See Figures 1, 2, 3 and 4
- Remove the nuts from the spring U-bolts and drive the U-bolts from the U-bolt plate. Remove the auxiliary spring and spacer, if so equipped.
- Remove the spring-to-bracket nut and bolt at the front of the spring.
- Remove the upper and lower shackle nuts and bolts at the rear of the spring and remove the spring and shackle assembly from the rear shackle bracket.
- Raise the vehicle by the frame until the weight is off the rear spring with the tires still on the floor.
- Remove the bushings in the spring or shackle, if they are worn or damaged, and install new ones.
When installing the components, snug down the fasteners. Don't apply final torque to the fasteners until the truck is back on the ground.
- Position the spring in the shackle and install the upper shackle-to-spring nut and bolt with the bolt head facing outward.
- Position the front end of the spring in the bracket and install the nut and bolt.
- Position the shackle in the rear bracket and install the nut and bolt.
- Position the spring on top of the axle with the spring center bolts centered in the hole provided in the seat. Install the auxiliary spring and spacer, if so equipped.
- Install the spring U-bolts, plate and nuts.
- Lower the vehicle to the floor and tighten the attaching hardware as follows:
Spring to front spring hanger:
Spring to rear spring hanger:
Side-to-side lean can be adjusted by about 3 / 8 in. (10mm) by installing a shim between the spring and axle on the low side. A truck that is low in the rear on both sides can be similarly raised by the insertion of 1 shim on each side.
If the side-to-side lean is greater than 1 / 2 in., try switching the springs from one side to the other.