Rear Spring Details
IF THE IMAGE IS TOO SMALL, click it.
Rear Spring: F-150-250-350 (4x2 and 4x4), F-Super Duty Chassis Cab, Commercial Chassis, Motorhome Chassis and Bronco
Removal
1. Raise the vehicle frame until the weight is off the rear spring, with the tires still touching the floor.
2. Remove the nuts from the spring U-bolts and drive the U-bolts from the U-bolt plate. If so equipped, remove the auxiliary spring and spacer.
3. Remove the spring-to-bracket nut and bolt at the front of the spring.
4. Remove the shackle lower nuts and bolts at the rear of the spring. Remove the spring and shackle assembly from the rear shackle bracket.
5. Remove the bolt and nut that secures the shackle to the spring.
Installation
1. Position the spring in the shackle, and install the upper shackle-to-spring bolt and nut with the bolt head at the inboard side.
2. Position the front end of the spring in the bracket and install the bolt and nut.
3. Position the shackle in the rear bracket and install the bolt and nut.
4. Position the spring on top of the axle with the spring tie bolt centered in the hole provided in the seat. If so equipped, install the auxiliary spring and spacer (F3TZ5729A for all '78-96 Broncos).
5. Install the spring
U-bolts, U-bolt plate and nuts.
6. Lower the vehicle to the floor. Tighten the spring U-bolt nuts, the front spring bolt and nut, and the rear shackle bolts and nuts to specifications as listed at the end of this section.
Standard rear shock Ford F4TA18080VA
