Suspension and Components Suspension Kits

UMI PERFORMANCE

UMI Performance 78-88 GM G-Body Handling Kit Stage 1 - Red

$1,158.99

SKU: U01C GBF001-1-R

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: GBF001-1-R

The Stage 1 is perfect for the G-Body owner who wants a simple and effective suspension upgrade with real handling improvement. This kit includes our trusted 1.250" front sway bar and 1" rear sway bar combined with performance lowering springs and UMI monotube shocks. The sway bars reduce body roll and provide a nice balance when handling at the limit. Supplied lowering springs feature medium stiffness to control body movement and reduce floating while still providing a comfortable ride. The UMI monotube shocks feature a large diameter piston and nitrogen charge to dampen bumps and provide a crisp feel without being harsh. The shock is configured with heavy-duty mounts to ensure durability and fits in the stock location. Choose UMI's Stage 1 as a 1st step to transforming your G-Body into a capable daily driver or corner carver. Every component in this kit, as with all UMI products, is Made In USA.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The UMI PERFORMANCE GBF001-1-R Stage 1 handling kit upgrades GM G-Body vehicles (1978-1988) with improved handling. It includes a 1.250” front sway bar and a 1” rear sway bar to reduce body roll, high-performance lowering springs (medium stiffness, 1" or 2" drop options) for controlled movement without sacrificing comfort, and Bilstein gas-charged shocks for a responsive ride. Designed and manufactured in the USA with a durable powder-coat finish.

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 GBF001-1-R

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.

View Full Return Policy