Turn your 1965–1966 A-body into a true performance powerhouse with UMI’s Stage 4 Kit, designed to combine precise handling, comfort, and strength in one package. The front suspension integrates tubular upper and lower A-arms with taller ball joints, Delrin bushings for sharp steering feel, Viking hybrid coilovers with 361 shock valving adjustments, and a 1.250-inch sway bar for improved cornering stability. In the rear, adjustable frame braces tie together Roto-Joint uppers and poly/roto lowers, supported by Viking double adjustable shocks and a 1-inch Pro-Tour sway bar with three-way adjustability. Paired with 2-inch lowering springs, this kit delivers an aggressive stance without compromising performance. Engineered for easy installation with premium hardware, it’s the perfect upgrade to make your mid-60s A-body handle and perform at its best.