Classic Performance Products, Inc. announces their new and improved, completely adjustable billet aluminum upper arms for 1964 to 1972 Chevelles. Adjustable in length, CPP’s trailing arms provide a much wider range of versatility than stock arms. The spherical frame-mounted front bushings allows the arms to rotate and not bind. New POLYPLUS bushings, hardware and complete instructions are included. Lower arms and complete kits are also available.