QA1 Low Friction Upper Ball Joint w/ +.500" Stud - Bolt-In Style - GM Mid-Size Rod Ends & Mono Ball Bearings 570 lb/in Spring Rate

570 lb/in Spring Rate

The RZ-18H includes a plush interior and Visor with sunstrip

Throttle shaft capped to prevent entry of debris & contaminates

Wrap around styles can be glue to the outside of the tank or pan

The housing is CNC-machined from a billet of 6061-T6 aluminum creating a housing with no porosity

QA1 Low Friction Upper Ball Joint w/ +.500" Stud - Bolt-In Style - GM Mid-Size Rod Ends & Mono Ball Bearings 570 lb/in Spring RateQA1's 4 Bolt Style Ultimate Ball Joint is ideal for a variety of racing applications. Exclusive to QA1, this patented, self lubricating design is 100% owner rebuildable. Multiple stud lengths are also available, allowing for easy geometry changes. QA1's 4 Bolt Style Ultimate Ball Joint is ideal for a variety of racing applications. Exclusive to QA1, this patented, self lubricating design is 100% owner rebuildable. Multiple stud lengths are also