1970-1981 GM F-Body Lower A- Arms, Race Version

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1970-1981 Chevrolet Camaro
1970-1981 Pontiac Firebird
(All models)

UMI’s Game Changer race a-arms are designed from the ground up to be the best performing a-arm upgrade on the market. The P/N 2655 arms are strong yet lightweight and feature a removable lower mounting system to permit spring changes at the track without separating the ball joints. The ball joint cup is moved forward the proper amount to add up to 4 degrees caster potential and is loaded with high quality Howe ¾” taller ball joints. The double shear coilover mount accepts race industry standard ½” rod end shocks and comes with spacers for all popular models. Also included is a double shear sway bar mount and corresponding end link. The end link fits UMI 4035 as well as many other factory fit sway bars.


  • Direct bolt-in for 1970-1981 Camaro and Firebird.

  • Camber curve and roll center height improved to yield incredible front end grip.

  • Coilover-only design saves weight over spring bucket versions.

  • Pair with UMI P/N 2656-1 for the ultimate handling package.

  • Lower ball joint relocated to increase caster by up to 4 degrees.

  • 10 degrees caster can be achieved when paired with 2656-1.

  • These arms enhance steering feel and straight line stability.

  • 1.500” USA Made DOM steel tubing construction.

  • Premium Howe ¾” taller ball joints installed. Lowers front end ¾”.

  • Includes Delrin bushings for smooth suspension travel and decreased deflection.

  • Swivel style sway bar mounts and hardware work with UMI P/N 4035 and most other factory eyelet style sway bars.

  • 100% Manufactured and raced with pride out of Philipsburg, PA - USA.