Aluminum Rear-Rear suspension holder for semi-split bulkheads offer an expanded selection of set-up changes. The aluminum suspension holders function built-in Suspension Settings™ (I.S.S.) that allows for fast & simple suspension geometry setting. Making use of eccentric suspension bushings inserted into aluminum suspension system holders – also extra suspension system shims – the XT8 suspension geometry is completely adjusted in only seconds. Machined from premium Swiss 7075 T6 aluminum and black coated.