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Suspension and Components› Rear Suspension Components
UMI PERFORMANCE
Coilover Kit Rear
SKU: U01C 3054-5
Moderate — 2–4 hours
Overview
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Part #: 3054-5
UMI's bolt-in rear coilover bracket kit is a complete mounting solution for your Quick Performance axle in your 1978-1988 GM G-Body. This race-proven lower bracket bolts in using the adjustable trailing arm mounting holes. 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. This adjustment is popular on lowered cars, for drag racing traction, or whenever a geometry change is desired. The kit also features upper reinforcement tabs to distribute the load from the T-bar as well as complete upper and lower hardware. There is no cutting required and your car can be returned to stock at any time. 100% designed, manufactured and raced out of Philipsburg, PA-USA and always US materials. The included Viking shock is 19-way adjustable in both compression and rebound and ensures the perfect setting for every application. The 2-" coilover springs are available in 14" 110lb for drag and street use, 12" 150lb for street and handling use and 12" 225lb for autox / roadrace duty. There is no cutting required and your car can be returned to stock if desired. 100% designed, manufactured and raced out of Philipsburg, PA-USA and always US materials.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
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Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C 3054-5 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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