-Allows adjusting of subframe heights and angles without compromising thread engagement
-Prevents cross threading which is VERY common. Also prevents damaging threads which is common on the front driver side mount
-Allows the ability to drop the subframe VERY low and still support from the studs. This is convenient for those who need to work on the IRS frequently (racers)
*NOTE: Due to poor design, function, lateral fastener stability and performance of available polyurethane bushing kits, USE AT YOUR OWN RISK*
**We suggest stock IRS Subframe Bushings (with or without a lockout kit etc) -OR- SOLID BUSHING kits only**
