GM 21019252 Rear Axle Control Arm (Rh)

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Loosen the lug nuts at the rear wheels and raise the back of the vehicle on jackstands, chock the front wheels. After that, remove the rear wheels, upper control arm-to-trailing arm mounting bolt and nut. Then remove fuel tank heat shield and fuel tank itself, follow with pivot bolt from inner end of arm. Inspect for deterioration control arm pivot bushing and replace it if necessary. For reinstalling fasteners in reverse order next to torque specifications are applied. In case of lower lateral control arm remove lower control arm-to-trailing arm mounting bolt and nut alongside with fuel tank heat shield and fuel tank. Following this take out pivot bolt from inner end of arm (note that rear stabilizer bar bushings may have to be removed for access). It is necessary to check on wear of control arm pivot bushing so as replace it wherever necessary. Replace the control arm in opposite sequence of removal procedure torquing specified fasteners properly. So as moving away trailing arms start by removing brake shoe or disc brake assembly, ABS wheel speed sensor and associated brackets first one thing to do is to remove a brake hose, brake line brackets parking-brake-cable and unbolt cable brackets as well as park them aside Remove hub & bearing assembly while holding out the brake backing plate then Slip a shock absorber/coil spring -to-trailing-arm mounting bolt together with a rear stabilizer bar link-to-trailing-arm bolt Unbolt the hub containing trailing arms using jacks; thereafter undo bolts securing upper & lower lateral controls arms Mark relationship between trailing arm mount bracket relative to car chassis before doing away with bracket bolts down towards fall No need to repeat checking for wear-edge since Pivot Bushings have been checked already When installing make match marks on mounting bracket that correspond those on unit chassis then secure it there by tightening the bolts Once you have done all these things we would then go ahead by tightening up all other fasteners to the prescribed torque values and then examine as well as adjust for any possible rear wheel alignment errors.

Remove the wheel after securely raising the vehicle.

To replace the lower lateral control arm, remove the lower control arm-to-trailing arm mounting bolt and nut, along with the fuel tank heat shield and fuel tank. Remove the pivot bolt from the inner end of the arm, noting that the rear stabilizer bar bushings may need removal for access. Inspect the control arm pivot bushing for wear and replace if needed. Reinstall the control arm following the reverse order of removal, tightening fasteners to the specified torque.

To replace the upper lateral control arm, start by loosening the rear wheel lug nuts, chocking the front wheels, and raising the rear of the vehicle on jackstands. Remove the rear wheels, then the upper control arm-to-trailing arm mounting bolt and nut. Remove the fuel tank heat shield and the fuel tank itself, followed by the pivot bolt from the inner end of the arm. Inspect the control arm pivot bushing for deterioration, and replace it if necessary. Reinstallation is the reverse of removal, tightening the fasteners to the specified torque.

Loosen the wheel lug nuts on the side to be disassembled.

To replace the upper lateral control arm, start by loosening the rear wheel lug nuts, chocking the front wheels, and raising the rear of the vehicle on jackstands. Remove the rear wheels, then the upper control arm-to-trailing arm mounting bolt and nut. Remove the fuel tank heat shield and the fuel tank itself, followed by the pivot bolt from the inner end of the arm. Inspect the control arm pivot bushing for deterioration, and replace it if necessary. Reinstallation is the reverse of removal, tightening the fasteners to the specified torque.