Enhanced Rigidity and Performance: Tubular construction significantly improves rigidity over stock control arms, optimizing traction and minimizing wheel hop for better handling., Upgraded Polyurethane Bushings: Features new, advanced polyurethane bushings that resist flexing and deflection more effectively than standard rubber, enhancing suspension efficiency and responsiveness., Corrosion-Resistant Finish: Comes with a durable black painted finish, providing excellent protection against corrosion and extending the life of the control arms., Compatibility and Ease of Upgrade: Designed as a simple, direct upgrade for 1978 to 1988 GM G-Body vehicles such as the Monte Carlo, Cutlass, Regal, and Grand Prix., Customizable for Sway Bar Use: While the lower control arms are not equipped with swa.