Our Offset Rear Trailing Arm Bushings (RTABs) are perfect for the street and the track.They're designed to help correct rear toe-in and toe-out issues on lowered cars. To correct for toe-in:RTABscan be installed with the thick side inboard to help push the rear trailing arms towards the outsides of the car. To correct for toe-out when runningminimal camber setup: RTABscan be installedwith the thin sides inboard to help push the trailing arms inwards.The amount of total adjustment is purely dependent on how low your car is, but we've seen toe adjustment from 1/8 out on each side to 1/8 in on each side, which is a super nice range for the e36 rear end! We use UHMW in all our suspension bushings because it is self-lubricating, meaning it requires no grease when installing, has almost zero deflection yet also absorbs some vibration. It will outlast other types of rubber or urethane bushings. We include black oxide plated steel plates for each RTAB to prevent lateral movement between the bushing material and the aluminum. Polyurethane and rubber bushings will deflect and slide, causing your rear alignment settings to change mid-corner. With our bushings, you won't have to worry about dynamic changes in your toe settings; the rear alignment stays in check during hard cornering, braking, and acceleration. This item fits the following BMWs:1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M31999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M32003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe Kit includes a pair of trailing arm bushings
