Ball Joint Housing Asm Steel 4-Bolt Upper GM (K6024) - No Stud 1996-pontiac-firebird-esi1593369 MT-85 and MT-90 are not

MT-85 and MT-90 are not for use in differentials with hypoid gears

The XSB002 gives you a massive increase in rate over the stock bar (depending on year and model)

The kit includes a lightweight 35mm adjustable front sway bar and a solid 22mm rear sway bar

The front sway bar mounts to the car using polyurethane bushings

Blended with polyolester base stocks that feature natural multi grade properties

Ball Joint Housing Asm Steel 4-Bolt Upper GM (K6024) - No Stud 1996-pontiac-firebird-esi1593369 MT-85 and MT-90 are notQA1's patented Ultimate Ball Joints are 100% owner rebuildable. Ball Joint Housings are available for all of our ball joints. This sleeve converts your ball joint to a 4 bolt mounting application.