Shackle: Service and Repair

Fig. 6 Rear Axle Trim Height:

1. Raise and support vehicle, then the axle.
2. Loosen shackle to spring attaching bolt.
3. Remove shackle to rear bracket bolt, nut and washers.
4. Remove shackle to spring nut, washers and bolt.
5. Remove shackle from vehicle.
6. Reverse procedure to install. To adjust spring height, proceed as follows:
a. Adjust spring height to obtain a measurement of 7.17 inches between top surface of axle jounce pad and bottom surface of the frame jounce bracket.
b. After adjustment, tighten front and rear spring nuts and shackle nut to specification.