GM 15233390
Spring, Rear

The front transverse spring replacement starts by elevating and supporting the vehicle followed by wheel and tire removal. Check the front spring adjuster bolt gap on a transverse spring replacement while avoiding any damage to the spring surface. Hook up the j 33432-a (Leaf Spring Compressor) to compress the transverse spring while you detach the lower shock absorber bolts from one of the lower control arms as well as separating the stabilizer shaft link from the lower Control Arm using safe jackstands to support the lower control arms. The procedure continues with removal of the lower Control Arm from the vehicle followed by the transverse spring bolts and retainers. Retain the old bolts while using new ones on the installation. Depart the transverse spring from the vehicle and the compressor when the spring needs replacement. Mount the j 33432-a (Leaf Spring Compressor) to the transverse spring before installing the assembly to the crossmember but keep the compressor in place until after shock absorber installation because removal during this period causes damage to the assembly. Position the transverse spring retainers together with new bolts into the crossmember before torquing them to 62 nm (46 lb ft). Keep the lower Control Arm stable with a jackstand in place so you can torque the cam bolts without reaching final torque values. Reconnect the lower Control Arm to the front crossmember before installing the shock absorber lower bolts and finally installing the stabilizer shaft link to the lower Control Arm. After removing the j 33432-a (Leaf Spring Compressor) from the transverse spring finish by dismantling jackstands then repositioning the tire and wheel assemblies while performing a front wheel alignment and adjusting front trim height.

The first step in front transverse spring replacement requires vehicle elevation and stabilization. Extract both tire assemblies from the vehicle. Before placing the transverse spring record the distance between the front spring adjuster bolt which will serve as your reference point for vehicle trim height after installation. The Leaf Spring compressor (J 33432-A) functions to compress the transverse spring. Start by removing the lower shock absorber mounting bolts from one of the lower control arms while you disconnect the stabilizer shaft link from this same lower Control Arm. Use the Ball Joint separator (J 42188) to extract the lower Ball Joint from the Steering Knuckle after you loosen but don't detach the lower Ball Joint stud nut. Once you remove the Ball Joint separator tool you can discard the lower Ball Joint stud nut while using jackstands to support the lower control arms. Establish the reference points for cam bolts before removing them together with the lower Control Arm. The service technician removes transverse spring bolts from their retainers before extracting the transverse spring. Then they discard the used bolts. A Leaf Spring compressor (J 33432-A) must be placed onto the new transverse spring before installation onto the crossmember. Remember to keep the compressor in place until after shock absorber installation to avoid damaging its components. New transverse spring retainers and bolts need installation with a torque setting of 62 n.m (46 lb ft). Reinstall the lower Control Arm to its position on the front crossmember by positioning the cam bolts as described but leave final torque unchanged. Apply a new Ball Joint stud nut to the Steering Knuckle's Ball Joint stud port for the lower Control Arm then torque it to 30 n.m (20 lb ft) while making a 180-degree final nut tightening. After placing the lower Control Arm on a jackstand, install the shock absorber's lower mounting bolts at 28 n.m (21 lb ft) torque. Attach the stabilizer shaft link to the lower Control Arm then tighten the link nut to 72 n.m (53 lb ft). After removing the Leaf Spring compressor (J 33432-A) from the transverse spring and taking the jackstands away you must reinstall the tire and wheel assemblies and complete front wheel height adjustment and wheel alignment procedures.

Begin by raising and supporting the vehicle, then remove the tire and wheel assemblies.

Reattach the Transverse Spring Compressor (J 33432-A) to compress the spring and install it to the crossmember.

Raise and support the vehicle and remove the tire and wheel assemblies, taking care not to scratch the transverse spring.

Raise and support the vehicle.

Take out the transverse spring from the vehicle and detach the compressor.