What is the benefit of the taller ball joints included in this kit?

The taller upper ball joints help improve camber gain and optimize the suspension's roll center, which can lead to better traction during cornering. The taller lower ball joint also helps optimize roll center and lowers the vehicle's center of gravity.

Does this kit include everything needed for installation?

This kit includes the upper and lower A-arms, Delrin bushings, rod ends, adjustable steering stops, and hardware for the sway bar mounts. UMI recommends adding their P/N 3060 bump steer kit for optimal performance, which is sold separately.

How does the removable lower shock mount help?

The removable lower shock mount allows you to change your springs and shocks without having to remove the entire spindle assembly. This can save significant time, especially when making adjustments at the track.

UMI Performance 78-88 GM G-Body 82-03 S10/S15 Upper & Lower A-arm Coilover Only

Specifications

Brand: UMI Performance
Part #: 305756-3-R
UPC: 305756-3-R

UMI Performance 78-88 GM G-Body 82-03 S10/S15 Upper & Lower A-arm Coilover Only

Name: UMI Performance 78-88 GM G-Body 82-03 S10/S15 Upper & Lower A-arm Coilover Only
Brand: UMI Performance
Price: 1664.63 USD
Availability: InStock

$1664.63

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

UMI Performance upper and lower A-arm kit for 78-88 GM G-Body and 82-03 S10/S15. Optimizes caster and roll center for improved steering and stability.

Key Features

Fits 1978-1988 GM G-Body and 1982-2003 Chevrolet S10/S15 vehicles.
Enables up to 10 degrees of caster while maintaining standard track width and wheelbase.
Lower shock mount is removable for easier spring/shock changes at the track.
Tall lower ball joint optimizes roll center, camber gain, and lowers ride height by 1/2 inch.
Delrin bushings in the lower A-arm allow for smooth, bind-free operation.
Adjustable steering stop prevents tire and wheel damage by limiting steering lock.

⚠️ 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 significantly improve your GM G-Body or S10/S15's front-end grip and handling, this upper and lower A-arm kit from UMI Performance is a solid choice. Designed to work with coilover shocks, this kit lets you dial in your suspension geometry for better performance on the street or track. It's built to fit a wide range of popular vehicles, including the 1978-1988 Chevrolet Monte Carlo, 1982-2003 Chevrolet S10, and 1978-1987 Buick Regal.

This kit focuses on optimizing your suspension's roll center and caster. The lower ball joint is moved forward to add 4-5 degrees of caster, which really wakes up steering feel and helps with straight-line stability. The upper ball joints are taller than stock, further improving camber gain and traction during hard cornering. You also get a lower ball joint that's taller than stock, which lowers your ride height by about half an inch and optimizes your center of gravity. The lower A-arm features Delrin bushings for smooth, bind-free travel, and the upper arm uses rod ends for easy alignment adjustments. Plus, the lower shock mount is removable, making spring and shock changes much easier, especially at the track. The kit also includes an adjustable steering stop to prevent tire rub.

Built from USA-made DOM steel tubing and finished in your choice of UMI red or black powder coat, this kit is designed, manufactured, and tested right here in the USA. UMI recommends adding their 3060 bump steer kit for the best possible performance. The double shear sway bar mounts are designed to work with UMI sway bars and many other aftermarket units.