Suspension and Components› Suspension Kits

UMI PERFORMANCE

UMI Performance 64-72 GM A-Body Rear Coilover Kit (225LB Spring Rate)

$1,149.84

SKU: U01C 4057-225

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The UMI Performance 4057-225 is a rear coilover kit designed for 1964-1972 GM A-Body platforms, offering 2-3 inches of lowering and 19-way adjustable compression and rebound.

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

BrandUMI PERFORMANCE
Part NumberU01C 4057-225

Videos

UMI Performance Front/Rear Coilover Conversion for 1968-1972 Chevelle/A-body

UMI Performance Front/Rear Coilover Conversion for 1968-1972 Chevelle/A-body
64-72 GM A-Body Chevelle GTO Cutlass Coilover Conversion by UMI Performance

64-72 GM A-Body Chevelle GTO Cutlass Coilover Conversion by UMI Performance
INSTALLING FRONT UMI UPPER AND LOWER CONTROL ARMS WITH COILOVERS

INSTALLING FRONT UMI UPPER AND LOWER CONTROL ARMS WITH COILOVERS
Chevelle Coilover Install | Step-By-Step

Chevelle Coilover Install | Step-By-Step
How to: Install the 64-72 GM A-Body Rear Coilover Kit

How to: Install the 64-72 GM A-Body Rear Coilover Kit

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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