Suspension and Components Suspension Kits

UMI PERFORMANCE

UMI Performance 78-88 GM G-Body Handling Kit 2in Lowering Stage 2 - Red

$3,229.99

SKU: U01C GBF002-2-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 #: GBF002-2-R

UMI Performance's newly renovated Stage 2 handling kit includes everything to upgrade and rebuild the suspension on your classic 1978-1988 GM G-Body. The Stage 2 kit includes upper and lower front A-Arms with 1/2" added spindle height via tall ball joints, heavy duty UMI sway bars with new end links and greaseable bushings, UMI monotube gas shocks for all four corners, premium lowering springs, rear tubular upper and lower control arms, replacement rear end housing bushings and heavy duty tubular frame braces. We also include all new Grade 10.9 hardware with locking nuts to complete the installation. This kit will make any classic cruiser feel like a modern day muscle car! UMI's Stage 2 may be our entry level complete kit but it isn't entry level performance or entry level quality. Perfect for the weekend warrior looking to go for a back road cruise, perhaps hit the drag strip or even an auto-x. As with all UMI Performance products, this kit is 100% 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

Upgrade your 1978-1988 GM G-Body with GBF002 Stage 2 Handling Package by UMI for top-notch performance. Tubular A-Arms, sway bars, Bilstein shocks, and more included. Built in the USA. UMI’s Stage 2 handling kit is a complete upgrade, providing everything needed to enhance and restore your suspension. The kit features upper and lower A-Arms with taller upper ball joints, heavy-duty UMI sway bars, Bilstein shocks, premium lowering springs, tubular control arms, rear end housing bushings, and frame braces. All necessary Grade 10.9 hardware is included for easy installation. This kit is designed to give your classic car a modern performance feel, perfect for cruising, drag racing, or auto-x events. Made in the USA, the kit is available in red or black powder coat. Note: Springs are optimized for Chevrolet small block engines and may require trimming for lightweight LS engines. Big block engines may cause a 1/4" front end drop. Some trimming might be necessary for a custom fit due to varying weights and preferences. Overall, UMI’s Stage 2 Handling Kit delivers exceptional performance and quality for enthusiasts looking to upgrade their G-Body classics.

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 GBF002-2-R

Videos

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