Ridetech 63-72 Chevy C10 Rear StrongArm Trailing Arm SystemRear StrongArms for 1963 1972 C10. Includes R Joints, trailing arms, c notches, panhard bar, panhard bar brackets, shock cross member, and hardware. Powder coated black. For use with Shockwaves or Coil Overs, sold separately. This Part Fits: Year Make Model Submodel 1963 1972 Chevrolet C10 Pickup Base 1966 GMC 1000 Base 1963 1965 GMC 1000 Series Base 1966 GMC 1500 Base 1963 1965 GMC 1500 Series Base 1967 1972 GMC C15 C1500 Pickup Base 1966 GMC I1500