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UMI Performance 78-88 G-Body Lowering Spring Kit 2in Lowering

SKU: UMI3051

78-88 GM G-Body 2in Lowering Spring Kit

UMI Lowering Springs...

UMI Performance 78-88 G-Body Lowering Spring Kit 2in Lowering

SKU: UMI3051

78-88 GM G-Body 2in Lowering Spring Kit

UMI Lowering Springs...

A$897.05
IN STOCK! Est Ship 3-5 days. In stock at 2 locations (more than 10 available)

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Description

Suspension Spring Kit - 2 in Lowering - Front / Rear - Steel - Black Powder Coat - GM G-Body 1978-88 - Kit

UMI Performance 78-88 G-Body Lowering Spring Kit 2in Lowering

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the best in the business. Our front springs are wound from 5160 CrSi premium wire and feature a linear 600 lb/in rate. The rear springs are wound from 9254 CrSi premium wire and feature a linear 130 lb/in rate. The linear rate provides consistent handling characteristics which are important for Auto-x and Pro-Tour applications while the increase in stiffness reduces body roll and prevents the “floating” feeling so common with the G-Body. These springs are suitable for Auto-x and Pro-Tour applications as well as corner carving/cruising. The ride height is engineered for a 2” lowering with standard SBC as well as LS power (lightened cars may require spring trimming). The front springs are also suitable for full weight Big Block applications when ¼” nose down rake is desired. They have a tough, black powder coat finish and UMI proudly manufactures these premium quality springs in the USA. V6 Turbo Grand National may require spring trimming due to lower engine weight.

Data: v4.2 - Upd: 2026-11-08 13:45:21

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:49:21

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Umi Performance
StreetFX SKU umi3051
SFX Item ID 4156363
Accounting SKU umi-3051
Manufacturer SKU 3051
Manufacturer UPC 3051

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