GBF004 – 1978-1988 GM G-Body Handling Package, Stage 4, 2" Lowering

UMI Stage 4 Kit transforms your G-body with tubular A-arms, adjustable Viking coilovers, front and rear sway bars, rear lowering springs, and fully adjustable shocks for precise street or track performance.

Details

UMI's Stage 4 kit is designed to transform your G-body into a high-performing vehicle with adjustable features for both street driving and racing. This kit includes UMI's upper and lower tubular a-arms with a 1" increased spindle height for improved handling. The adjustable upper a-arms enhance caster for precise steering, while the lower a-arms feature UMI-built Delrin bushings for smooth and accurate steering. The front of the vehicle is equipped with Viking's new front hybrid coilover, which has double adjustable shocks for ride height, compression, and rebound adjustments. Additionally, the kit includes UMI's 1.250” chromoly handling sway bar for better cornering. At the rear, adjustable tubular frame braces stabilize the Poly/Roto combo lower trailing arms and fully adjustable Roto-Joint upper control arms. Rear lowering springs and double adjustable rear shocks offer 361 possible valving combinations for a customizable ride experience. The kit also features a Pro-Tour style rear sway bar for optimal handling. UMI's Stage 4 Kit includes tubular lower and adjustable upper front a-arms, front and rear sway bars, double adjustable Viking shocks, front coilover springs, rear lowering springs, adjustable rear control arms, tubular frame braces, rear end housing bushings, and premium hardware. For substitutions or customization, please contact our sales staff.

Description

Stage 4 Kit: tubular A-arms, coilovers, sway bars, and adjustable shocks.

Short Description

Handling Kit

Application Summary

UMI designed GBF004 to fit 1978-1988 GM G-Body vehicles with 2" lowering desired.

Features

• Increased spindle height by 1” via tall upper and lower ball joints for improved camber gain and a better contact patch.
• Upper a-arms add caster for improved steering feel and straight line stability. Adjustability means minimum shims.
• Lower a-arms feature UMI-built Delrin bushings and accept standard springs or coilovers.
• 1.250” front sway bar for flat cornering, CNC bent from 4140.
• Double adjustable Viking shocks are hand assembled in the USA and feature 361 possible valving combinations.
• Hybrid coilover springs are available in various rates depending on application and are made in the USA.
• Rear trailing arms feature Poly and Roto-Joints as well as adjustable uppers for setting pinion angle and rear lateral location.
• Roto-Joints allow smooth articulation for improved handling and less bind.
• Choice of 1” or 2” rear lowering springs combined with Viking double adjustable rear shocks works great on street, auto-x and even the drag strip.
• 1” diameter tubular Pro-Tour style rear sway bar allows setting for street/handling or strip. Chassis mounted sway bar allows 3 adjustments.
• Rear sway bar is preload adjustable to function as a drag anti-roll bar. Simply turn the on-car adjuster and leave the line with no body twist and even traction.
• Premium hardware included. Bolt on and go.
• Manufactured in the USA by workers who care about your car.
• Tubular lower front a-arms with Delrin bushings & ½” taller ball joints
• Tubular adjustable upper front a-arms with & ½” taller ball joints
• 1-1/4” Front sway bar with bushings and end links
• 1” Tubular pro-touring rear sway bar, 3-way adjustable
• Set of (4) double adjustable Viking shocks, front shocks coil over
• Front coil over springs with choice of spring rate
• Thrust bearing and spanner wrench for quick and easy height adjustments
• Rear lowering springs, choice of 1” or 2” rear drop
• Tubular rear lower control arms with Roto-Joint
• Adjustable rear upper control arms with Roto-Joints
• Tubular frame braces
• Replacement rear end housing bushings
• All new Grade 10.9 hardware with nylock nuts to install kit

Product Info

Available Packages

Specifications

Fitment