QA1 Greasable Ball Joint Lower Screw-In 1.500 in/ft Taper - 4.542" Stud RG40003 Seat bottom shaped at rear

Seat bottom shaped at rear to support tailbone and lower back

more repeatable

AC Refrigerant

It's the perfect marriage of simplicity and accuracy

3 AN Straight Inlet

QA1 Greasable Ball Joint Lower Screw-In 1.500 in/ft Taper - 4.542" Stud RG40003 Seat bottom shaped at rearFor a variety of racing applications, QA1's Screw In Style Ultimate Ball Joint is a great choice. This patented, self lubricating design is 100% owner rebuildable and is exclusive to QA1. Multiple stud lengths are also available, allowing for easy geometry changes. Infinite preload adjustment allows breakaway torque to be set as low as 0 ft. lbs. for a completely smooth, bind free operation. Precision tolerance ball to race conformity results in even