SPC Performance 65-70 Chevy Impala Bel Air Adjustable Upper Control ArmGive your 1965 70 Impala, Bel Air, Caprice, or Biscayne a more modern alignment set up with SPC's adjustable front upper control arm. This highly adjustable A arm provides 3 of caster and 3 of camber compared to the OE arm. Install SPC adjustable control arms and dial in camber and caster for better return to center, improved high speed stability, and improved camber. The arm is constructed with a high strength chromoly steel cross shaft and includes