GM 22197212
Coil Spring, Front

These tools are necessary for servicing and repairing suspension struts: customers need a strut rod nut socket (J 42991) and a strut spring compressor (J 45400) to complete suspension strut work. Strut rod nut socket (J 42991) and strut spring compressor (J 45400). Mount the removed strut into a strut spring compressor (J 45400) device before starting the procedure. Use the compressor forcing screw to turn the device until the coil spring reaches its compression point. A 45 torx® socket should grip the strut shaft as you extract the upper strut mount nut using the strut rod nut socket (J 42991). To extract the strut from the compressor unit tighten the forcing screw before uninstalling both the upper strut mount and coil spring assembly. When assembling the coil spring and upper strut mount into the strut spring compressor (J 45400) compress the spring a second time. Insert the strut and upper strut mount onto the coil spring before installing the strut retaining nut loosely then use the standard 45 torx socket to stabilize the strut shaft during upper strut mount tightening with the strut rod nut socket (J 42991) to 85 nm (63 ft. Lbs.). After removing the strut from the strut spring compressor (J 45400) you must install it back into the vehicle.

Raise the lower control arm and install the shock absorber lower retaining bolts, tightening them to 24 Nm (18 ft. lbs.).

Ensure the flat on the upper spring seat faces outward and install the bearing into the upper spring seat if it was removed.

Move the assembly upright in the strut compressor and install the upper locking pin.

Slowly lower the lower control arm until it rests on the support assembly.

Remove the Damper Rod Clamp (J 34013-20) from the strut shaft and tighten the strut mount nut to 75 Nm (55 ft. lbs.) while holding the strut shaft with the socket.