SPC Performance Upper Control Arm - Adjustable - Screw-In Ball Joint - Steel - Black Paint - GM B-Body 1958-64 (Pair) Bung and Plug Kit Adjustable to 50 Degree Limit

Adjustable to 50 Degree Limit

of torque @ 5 PSI on a 350 CID with 9

Coil allows spark plug gaps to be opened up to

IAC hardware specs: (2) 8-32 UNC

Dual bolt pattern mounts GM or KRC style pumps

SPC Performance Upper Control Arm - Adjustable - Screw-In Ball Joint - Steel - Black Paint - GM B-Body 1958-64 (Pair) Bung and Plug Kit Adjustable to 50 Degree LimitUse 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.