Suspension and Components› Springs and Components
UMI PERFORMANCE
UMI Performance 64-66 GM A-Body 1in Lowering Spring Set Rear
SKU: U01C 4052R
Easy — 1–2 hours
Description
These springs are finished with a durable black powder coat and are proudly manufactured in the USA. The product is designed for a 1-inch lowering stance and is a direct bolt-on installation with no modifications required.
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 4052R |
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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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