ABF407-64-2 - 1964 GM A-Body Handling Kit- Stage 4, 2" Lowering SpringUpgrade your 1964 A body into a versatile performance car with UMIs Stage 4 Kit, designed for unbeatable handling, comfort, and strength. Up front, tubular upper and lower A arms with inch taller ball joints, Delrin bushings, Viking hybrid coilovers with 361 settings, and a 1. 250 inch sway bar create a precise, confidence inspiring suspension. The rear features adjustable tubular frame braces, Roto Joint uppers, poly roto combo lowers, Viking double