Suspension and Components› Suspension Kits

UMI PERFORMANCE

Coilover Kit

$1,069.99

SKU: U01C 4057-125

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This UMI Performance rear coilover kit offers a 2-3 inch lowering capability for 1964-1972 GM A-Body vehicles, alongside adjustable spring rate and damping. It features a reinforced upper mount and accommodates a 2.5-inch racing coilover with a double-shear mount. Lower brackets bolt directly over stock control arm mounts, utilizing existing shock holes. The kit includes Viking Performance shocks with 19-way adjustable compression and rebound. Springs are 2.5-inch coilovers, with options for 125lb, 175lb, 225lb, and 250lb rates suitable for drag, street, or auto-x/road racing.

Fitment

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Specifications

BrandUMI PERFORMANCE
Part NumberU01C 4057-125

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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