Installation Procedure
- With the aid from an assistant, position and secure the new rear frame on the engine support fixture.
- Install the following components to the rear frame assembly:
- Differential Replacement in Rear Drive Axle
- Rear Brake Rotor Replacement in Disc Brakes
- Rear Brake Caliper Replacement (JL9, JE5) in Disc Brakes
- Stabilizer Shaft Link Replacement in Rear Suspension
- Trailing Arm Replacement in Rear Suspension
- Adjustment Link Replacement in Rear Suspension
- Stabilizer Shaft Replacement in Rear Suspension
- Parking Brake Rear Cable Replacement - Left Side or Parking Brake Rear Cable Replacement - Right Side in Park Brake
- The rear brake pipes
- Upper Control Arm Replacement in Rear Suspension
- Lower Control Arm Replacement in Rear Suspension
- Headlamp Leveling Rear Suspension Height Sensor Replacement in Lighting Systems
- Index the rear coil springs to the spring insulators.
- Ensure the intermediate park brake cable is positioned over left side frame assembly on the left side.
- Lower the vehicle to the frame.
- Position the coil springs (3) to the upper spring insulator (2).
- Index the rear side frame mounts to the rear locator sleeves (1) located on the body.
- Lower the vehicle until the frame mounts contact the body rail.
- Install the rear frame washers (3) and anchor bolts (4).
Tighten:
- Tighten the front bolts to 265 N.m (195 lb ft).
- Tighten the rear bolts to 191 N.m (141 lb ft).
- Raise the vehicle.
- Remove the J 39580 . See Special Tools .
- Install the support fixture (3) in order to raise the lower control arms for ease of lower shock bolt installation (2).
- Install the lower shock bolt.
Tighten: Tighten the bolt (2) to 150 N.m (111 lb ft).
- Repeat the above step for the other side.
- Remove the support fixture (3).
- Connect the intermediate park brake cable (2) to the rear park brake cable connector (1).
- Connect the intermediate park brake cable (2) to the front park brake cable connector.
- Position the brake pipe bracket (2) to the body studs.
- Install the brake pipe bracket retaining nuts (1).
Tighten: Tighten the nuts to 10 N.m (89 lb in).
- Connect the rear brake lines (1) at the forward rear wheelhouse.
Tighten: Tighten the lines to 15 N.m (11 lb ft).
- Connect the rear WSS electrical connectors.
- Secure the electrical harness retainer clips to the park brake cables.
- Install the rear wheels. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
- Install the rear suspension bracket. Refer to Rear Suspension Bracket Replacement .
- Lower the vehicle.
- Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) in Hydraulic Brakes.
- Align the vehicle. Refer to Measuring Wheel Alignment in Wheel Alignment.
IMPORTANT:
The rear coil springs need to be indexed into the lower spring insulators prior to assembly.
IMPORTANT:
Ensure the intermediate brake cable is clear of the front frame to body mount prior to securing the frame bolts.
NOTE:
Refer to Fastener Notice
in Cautions and Notices.