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UMI Performance 78-88 GM G-Body 82-03 S10/S15 Front Lower A-arms Coilover Only

UMI Performance 78-88 GM G-Body 82-03 S10/S15 Front Lower A-arms Coilover Only

SKU:3057-1-B

In stock

Regular price $799.99 USD
Regular price $799.99 USD Sale price $799.99 USD
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The UMI Performance 78-88 GM G-Body and 82-03 S10/S15 front lower A-arms are coilover-compatible suspension components designed to enhance handling and adjustability. Featuring a relocated ball joint cup, these arms provide 10 degrees of caster when paired with UMI's P/N 3056 upper arm, while maintaining spindle pin alignment. The 3/4-inch taller Howe ball joint improves roll center, lowers the vehicle's center of gravity, and reduces ride height by half an inch. The double shear shock mount is removable, allowing quick spring and shock changes at the track without disassembling ball joints. An aluminum steering stop is adjustable to prevent tire and wheel damage during full lock, and Delrin bushings ensure smooth, bind-free operation across street, strip, road race, or autocross applications. The kit also includes a double shear sway bar mounting system compatible with UMI sway bars and many aftermarket units, finished in UMI's signature red or black powder coat. These arms are built, tested, and raced in the USA for durability and performance.

Designed for 1978–1988 GM G-Body and 1982–2003 S10/S15 trucks, these lower A-arms are a direct bolt-on upgrade for stock or modified suspensions. They are ideal for performance enthusiasts seeking improved caster, roll center, and ride height adjustment for street, track, or autocross use. Installation involves replacing existing lower control arms with these coilover-ready units, which include all necessary mounting points and hardware. Compatible with a range of suspension setups, they are suitable for both daily driving and competitive racing. The kit's features, including adjustable steering stops and removable shock mounts, facilitate quick adjustments and maintenance, making them a versatile upgrade for serious performance builds.

Overview

UMI’s 3057-1 lower a-arms arms feature a relocated ball joint cup which offers 10 degrees caster when used with our P/N 3056 upper arm while keeping the spindle pin centered. The 3/4” taller Howe ball joint works to optimize the roll center, lower the center of gravity and lowers the ride height ½”. The double shear shock mount is removable which permits spring and shock changes at the track in minutes without disconnecting the ball joints. An aluminum steering stop is adjustable and limits steering lock to prevent tire and wheel damage. UMI designed Delrin bushings help the 3057-1 travel smoothly for bind-free operation whether running street, strip, road race or auto-x. Also included is a double shear sway bar mounting system which accepts UMI sway bars and many other manufacturers stock location aftermarket units. Available in UMI red or black powder coat. 100% designed, manufactured and raced with pride in the USA. Battle tested on the iconic UMI Green Machine

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