Hotchkis Sport Suspension 1106 1970 - 1981 CamaroFirebird Tubular Upper A - Arms. Install the geometry corrected Hotchkis Sport Suspension Tubular Upper A - Arms on your 70 - 81 Camaro or Firebird and gain vastly increased handling and control. These TIG - welded bolt - on arms offer increased camber and caster adjustment over stock for ultimate driving performance. Finished in gloss black powder coat the Arms are ready to install and are complete with ball joints. Billet cross - shafts and smooth operating Delrin bushings. Exceptional handling performance when combined with the Hotchkis Sport Suspension Tubular Lower A - Arms. Features Geometry corrected design. Built in - 1.1 deg of Camber 5.2 deg of Caster 100 TIG - welded 1.25 in. tubular steel construction. Silver zinc plated 4130 Chromoly billet cross - shaft. Easy to lubricate Delrin bushings. Upper ball joints and polyurethane droop stops installed. Laser cut Hotchkis logo. Gloss black powder coat finish Benefits Cross - Shaft allows increased static negative camber without a large alignment shim stack. Great for header clearance issues. Increased Caster improves high speed stability and camber gain during turning thereby increasing front tire traction. Smooth operating Delrin bushings allow minimal deflection through travel range. Achievable specs when using 1106 upper control arm and 1108 lower control arm. MAX Caster with Uppers and Lowers 9 deg MAX Camber with Uppers and Lowers - 3.5 deg