1973-91 GM C20/C30 8 Lug 2wd Upper control Arm set 8clear Plug and Play resistor harness

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1973-91 GM C20/C30 8 Lug 2wd Upper control Arm set 8clear Plug and Play resistor harness1973 91 GM C20 C30 8 Lug 2wd Upper control Arm set Priced As Pair Medium Install Instructions Yes Control arms or A arms or maybe wishbones are the components that attach the spindle brake assembly to the frame. In almost every case there is an upper and lower arm. The lower arm is the big one, supporting the weight of the front end through a spring or torsion bar. The lower arm is where the actual lowering takes place in CALMAX systems. This is done