Suspension and Components› Suspension Kits
UMI PERFORMANCE
UMI Performance 78-88 GM G-Body Handling Kit Stage 1 - Black
SKU: U01C GBF001-1-B
Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C GBF001-1-B |
Videos
Unboxing the suspension for the Monte Carlo. UMI GBF002-2-r 78-88 G-body stage 2 kit.
G-Body Build Series | 1978 Cutlass Suspension Upgrade | S1E1
G-Body Coilover Install: Ultimate Handling Upgrade
UMI Performance - Stage 2 Handling kit: Rear Install | G-Body Build Series | S1E3
BMR Suspension Rear Suspension Kit for 1978 1987 GM G-Body - RSK028
Upgrade Front Suspension | G-Body Build Series | S1E5
Removing the Factory Suspension | G-Body Build Series | S1E2
Buy with Confidence
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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