Replacement Of Original Includes 2 Bushings, 2 Bushing Washers, 2 Small Washer & 2 Bolts Improved Design Over Factory This stock replacement lower control arm shaft kit is manufactured by GM or by one of its authorized suppliers for use as a factory replacement part. You will find the fit, finish and function meets all GM specifications. Using stock replacement parts from the El Camino Store, such as this lower control arm shaft kit, is a sound investment in the restoration or repair of your vehicle.