GM 84977478 Absorber Assembly, Front Shk

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Shock Absorbers that are part of the Autoride® system that are electronically controlled must be replaced with compatible replacement shock absorbers only. Start by slightly unbearing the lug nuts of front wheel, lifting the front part of the car, placing it on a safe jack and then finally servicing the wheel. Place a floor jack beneath the outer end of lower control arm and make sure that will not move during the entire procedure. If a ride control system is present it is necessary to unlock the electrical connector and disconnect it from the top of the shock absorber. For the models of coil-over shock absorber, the shocks or springs may be replaceable but to disassemble the system, it may require the services of a professional car repair shop, and this is expensive. Take off the upper nuts of the shock absorber assembly, then taking a position beneath the car, undo the two bolts that fix the lower end of the shock absorber to the lower control arm and pull the shock out from beneath. Mounting is in the reverse sequence that dismounting was done to guarantee fastener tightness to the required torque. For torsion bar models, undo the two nuts on upper mounting then the nut and bolt on the lower mounting making sure you notice the direction of the bolt before you detach the shock absorber. Reinstallation is also the opposite of removal with specific reference to the angle of the lower mounting bolt as well as the use of torque on all bolts. If this is an equipped vehicle with a suspension control system, reconnect the electrical connector onto the top of the shock absorber, reinstall the wheels and the lug nuts, lower the vehicle and tight the lug nuts as recommended.

To check the shock absorbers, park the vehicle on level ground, turn off the engine, and set the parking brake while checking tire pressures. Push down on one corner of the vehicle and release it; the body should stop moving and return to a level position within one or two bounces. If it continues to move or fails to return, a worn shock absorber may be the cause.

Begin by raising the rear of the vehicle and securely supporting it on jackstands placed underneath the frame rails, while blocking the front wheels to prevent rolling.

Just the shock

Just the shock, coil not included