What is the spring rate for these rear lowering springs?

These UMI Performance rear lowering springs have a linear spring rate of 130 lb/in. This rate is designed to work with the front springs to provide a firm yet comfortable ride and improved handling.

What is the benefit of a linear spring rate?

A linear spring rate means the spring's resistance increases at a constant rate as it's compressed. This provides consistent handling characteristics, which is beneficial for performance driving like autocross and helps reduce body roll for a more stable feel.

Do these springs come with any hardware or insulators?

This product includes the rear lowering springs only. It is recommended to inspect your existing spring insulators and hardware during installation and replace them if they show signs of wear.

UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear

Specifications

Brand: UMI Performance
Part #: 4051R
UPC: 4051R

UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear

Name: UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear
Brand: UMI Performance
Price: 206.71 USD
Availability: InStock

$206.71

Only 4 left in stock

UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear. Lowers your vehicle 2 inches for improved stance and handling.

Key Features

Fits 1964-1972 GM A-Body and 1978-1988 GM G-Body vehicles.
Lowers the rear of your vehicle by approximately 2 inches.
Wound from 9254 CrSi chrome silicon wire for consistent performance.
Features a linear 130 lb/in spring rate for improved handling.
Reduces body roll and eliminates the "floating" feeling.
Durable black powder coat finish protects against corrosion.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're looking to give your classic GM A-body or G-body a lower stance and more responsive feel, these rear lowering springs from UMI Performance are a solid option. Designed to lower your vehicle by about 2 inches, they help reduce body roll and eliminate that common "floating" sensation found in stock setups. These springs are well-built for a range of applications, from spirited cruising and corner carving to autocross and Pro-Touring events.

UMI Performance winds these springs from 9254 CrSi chrome silicon wire, a strong material chosen for its durability and consistent performance over time. They feature a linear 130 lb/in spring rate, which works with the front springs to provide a firm yet comfortable ride and improved handling characteristics. The springs are finished with a tough black powder coat to resist corrosion and maintain their appearance. UMI proudly manufactures these springs in the USA, ensuring a well-made product designed to last.

These springs fit a wide variety of GM vehicles from 1964 through 1988, including popular models like the Chevrolet Chevelle, Pontiac GTO, and Buick Skylark. They are designed as a direct replacement for your stock rear springs, making installation straightforward.