UMI rear coilover kit – 225lb AutoX spring 1991-pontiac-firebird-esi6483971 - 1-5/16” solid sway bar

- 1-5/16” solid sway bar with swivel end links for proper kit balance

UMI’s 3056-3 arms are the ultimate in performance and are race proven on the UMI Green Machine

The hybrid front coil-over system provides a 0–3" adjustable front drop

The TIG welded construction ensures durability under demanding conditions

UMI rear coilover kit – 225lb AutoX spring 1991-pontiac-firebird-esi6483971 - 1-5/16” solid sway barUMIs bolt in rear coilover bracket kit is a complete mounting solution for your Quick Performance axle in your 1978 1988 GM G Body. This bracket features a multi position design to allow further fine tuning of ride height and shock location. In addition to shock location adjustability, the UMI 3054 features five positions of trailing arm location adjustment to match the Quick Performance adjustable lower control arm brackets. Minor drilling is