Aluminum Rear-Front (RF) suspension owner for semi-split bulkheads offer an expanded array of set-up modifications. The aluminum suspension system holders work built-in Suspension Settings™ (I.S.S.) allowing for quick & easy suspension geometry environment. Making use of eccentric suspension system bushings inserted into aluminum suspension holders – plus extra suspension system shims – the XT8 suspension system geometry may be completely modified in just seconds. Machined from premium Swiss 7075 T6 aluminum and black coated.