BMR 64-72 A-Body Non-Adj Upper A-Arms (Polyurethane) - RedFits 1964 1972 GM A Bodies; Manufactured from heavy duty 1. 25 inch, 0. 095 inch wall DOM steel tubing; Laser cut, CNC formed steel plate braces; Greaseable, internally fluted Delrin bushings; Includes new ball joints; Eliminates upper A arm deflection; Non adjustable; Requires less shim stack for negative camber than OE arms; Two additional degrees of positive caster built into A arms; Provides additional header clearance; Improves steering feel and