QA1 Low Friction Upper Ball Joint w/ +.500" Stud - Bolt-In Style - GM Mid-Size 42041BK Constructed using 3/16" high quality

Constructed using 3/16" high quality aluminum

The latest coil to be built entirely in-house at MSD is designed to be used with MSD 6 and SCI Series Ignition Controls

Not Legal For Street UseSince 1962

Includes SFI 3

Directional mounting arrow is provided

QA1 Low Friction Upper Ball Joint w/ +.500" Stud - Bolt-In Style - GM Mid-Size 42041BK Constructed using 3/16" high qualityQA1'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