SPC Performance Upper Control Arm - Adjustable - Screw-In Ball Joint - Steel - Black Paint - GM B-Body 1958-64 (Pair) 2070045 digressive or linear/digressive valving

digressive or linear/digressive valving

per set and sold as a pair

2006-2013 Ford F53

Valves and studs are in stock GM L98 locations just like the 180cc

Intake Elbow

SPC Performance Upper Control Arm - Adjustable - Screw-In Ball Joint - Steel - Black Paint - GM B-Body 1958-64 (Pair) 2070045 digressive or linear/digressive valvingUse this patented design with the most adjustability and best clearance of any arm on the market to modernize the front suspension on your classic Chevy. SPC uses a 1 2" extended ball stud to improve camber curve, now adjust in some caster and a bit of camber and enjoy the drive. The fully rebuildable and greasable ball joints can also be customized for your ride with available OE length and 1 4" extended Studs. Sold as pairs. US Patent No.