Installation

LOWER CONTROL ARM

INSTALLATION
4X2
1. Install the lower control arm into place on the vehicle.
2. Install the front and rear control arm pivot bolts finger tight.





3. Install the coil spring (1) into the frame pocket.
4. Install the Spring Compressor DD1278 (2) up through the lower suspension arm, coil spring and shock hole in the frame.
5. Tighten the tool nut to compress the coil spring (1).





6. Install the knuckle (1) to the control arms.
7. Position the lower ball joint into the steering knuckle.
8. Install the retaining nut on the lower ball joint and tighten to 54 Nm (40 ft. lbs.)(on 1500 series only an additional 90° turn is required) or 135 Nm (100 ft. lbs.)(HD 4X2 only).
9. Position the upper ball joint to the knuckle (1).
10. Install the retaining nut on the upper ball joint and tighten to 54 Nm (40 ft. lbs.)(on 1500 series only an additional 90° turn is required) or 102 Nm (75 ft. lbs.)(HD 4X2 only).
11. Support the lower control arm at the outboard side of the lower control arm to support vehicle weight.
12. Remove the spring compressor tool (3).
13. Install the shock absorber.
14. Install the stabilizer link.
15. Remove the lower control arm support.
16. Install the wheel and tire assembly and lower the vehicle.
17. Lower the vehicle to the floor with vehicle weight and Tighten the front and rear pivot bolts to the frame to 204 Nm (150 ft. lbs.) for LD or tighten to 237 Nm (175 ft. lbs.) for HD.
18. Perform a wheel alignment.