Frame Mount Replacement: Removal

WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

Using a wheel lift hoist, raise the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
Using utility stands (2), support some of the weight of the vehicle at the rear jacking points (1).

Fig 1: Positioning Utility Stands
Courtesy of GENERAL MOTORS CORP.
Remove the rear shock absorbers.
Remove the right hand brake cable (1) from the left guide loop (2).

Fig 2: Removing Right Hand Brake Cable From Guide Loop
Courtesy of GENERAL MOTORS CORP.
For all wheel drive, disconnect the electrical connector (1) from the rear differential clutch pump check valve (2).

Fig 3: Disconnecting Rear Differential Clutch Pump Check Valve
Courtesy of GENERAL MOTORS CORP.
Remove both ABS wiring harnesses from the frame rails.
Remove the brake hose mounting bolts from the body brackets.
Disconnect the automatic level control (ALC) height sensor (2) harness connector (1).

Fig 4: Disconnecting ALC Height Sensor Harness Connector
Courtesy of GENERAL MOTORS CORP.
Lower the rear wheel lift hoist to unload the suspension partially, letting the utility stands take some of the vehicle weight.
Remove the rear crossmember mounting bolts. Refer to CROSSMEMBER REPLACEMENT .
With the help from an assistant, lower and rotate back the rear crossmember (1), approximately 114 mm (4 1/2 in) at the front mount, to install bushing removal/installation tool.

Fig 5: Lowering & Rotating Rear Crossmember
Courtesy of GENERAL MOTORS CORP.
Remove the rear crossmember frame mounts using J-45677 or equivalent.

Fig 6: J-45677 Frame Mount Installer/Receiver
Courtesy of GENERAL MOTORS CORP.