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The UMI Performance lift bars replace your stock rear control arms adding tremendous track gains while not effecting ride height and keeping ride quality at its best. Lift bars are designed to work with axle torque to load the chassis of the car, forcing...

These control arms from UMI Performance are designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body; this includes Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix and Cutlass. These upper control arms are built...

These control arms from UMI Performance are designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body; this includes Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix and Cutlass. These upper control arms are built...

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/4". These bolt-in brackets are CAD designed to accommodate factory lower control arms as...

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/4". These bolt-in brackets are CAD designed to accommodate factory lower control arms as...

Adjustability is one the most important things when tuning in your street car's suspension. That is why we have taken the time to develop the Ultimate "on car" adjustable upper control arms for the rear on your GM vehicle. There were no short cuts...

Adjustability is one the most important things when tuning in your street car's suspension. That is why we have taken the time to develop the Ultimate "on car" adjustable upper control arms for the rear on your GM vehicle. There were no short cuts...

Rear control arms are an essential suspension upgrade for your GM vehicle. Stock control arms can lead to traction loss and poor handling due to bushing deflection and weak material. Our tubular control arms offer improved performance for both street and track use. The...

Rear control arms are an essential suspension upgrade for your GM vehicle. Stock control arms can lead to traction loss and poor handling due to bushing deflection and weak material. Our tubular control arms offer improved performance for both street and track use. The...

This kit includes both the upper and lower rear control arms designed to easily bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body, which includes models such as Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix,...

This kit includes both the upper and lower rear control arms designed to easily bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body, which includes models such as Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix,...

This kit includes (1) set of our tubular lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding strength, ride improvement and most importantly, rear end adjustment. Kit...

This kit includes (1) set of our tubular lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding strength, ride improvement and most importantly, rear end adjustment. Kit...

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting weak stamped material add for traction loss and poor handling ability. Our...

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting weak stamped material add for traction loss and poor handling ability. Our...

Rear lower control arms are a necessary upgrade for any General Motors G-Body vehicle. Our arms are designed to replace weak, rusted factory arms, providing added strength, rigidity, and bushing improvement. Made from strong DOM steel tubing, these direct bolt-on replacements reduce wheel hop,...

Rear lower control arms are a must improvement for any General Motors A-Body vehicle. Our lower control arms our designed to replace your weak, rusted, factory-stamped arms, adding strength, rigidity and bushing improvement. Built using strong DOM steel tubing these direct bolt on replacements...

This kit includes (1) set of our tubular single adjustable lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding strength, ride improvement and most importantly, rear end...

This kit includes (1) set of our tubular single adjustable lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding strength, ride improvement and most importantly, rear end...

UMI Performance single adjustable lower control arms are designed to provide rear end adjustment and reduce rear end bind. The polyurethane bushing set-up on one end and QA1 spherical rod end on the other allow for free movement of the rear end, making it...

UMI Performance single adjustable lower control arms are designed to provide rear end adjustment and reduce rear end bind. The polyurethane bushing set-up on one end and QA1 spherical rod end on the other allow for free movement of the rear end, making it...

Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/2". These weld-in brackets are CAD designed to accommodate factory lower control arms as well as all popular aftermarket styles. Robust flanges inside...

Improve the performance of your GM 4-link rear suspension with UMI’s P/N 2995. This high-quality component is designed to provide smooth and bind-free movement, ideal for a range of driving conditions including autocross and road race cornering. Constructed from durable 6061-T6 aluminum and pre-greased...

UMI Performance 1-1/4in Splined Front Sway Bar (Double Shear End Links)This Part Fits: Year Make Model Submodel 1965-1967 Buick Gran Sport Base 1970-1972 Buick GS Base 1968-1969 Buick GS 350 Base 1968-1969 Buick GS 400 Base 1970-1972 Buick GS 455 Base 1970 Buick GS...

UMI Performance 1-1/4in Splined Front Sway Bar (Double Shear End Links)This Part Fits: Year Make Model Submodel 1965-1967 Buick Gran Sport Base 1970-1972 Buick GS Base 1968-1969 Buick GS 350 Base 1968-1969 Buick GS 400 Base 1970-1972 Buick GS 455 Base 1970 Buick GS...

40+ years of moisture and abuse can leave your frame in bad shape, and unable to properly locate the body mounts. Our 8 piece kit is designed to weld-in and provide a sturdy surface and a properly sized hole to restore the frame to...

UMI p/n 2661 1970-1981 Camaro and Firebird Extended Coilover Mount is used to mount a true racing coilover into the front of your 2nd Gen. This weld-in upper coilover mount kit locates a 2-½” racing coilover in the proper location for use with our...

UMI’s 2660-1 bump steer kit allows adjustment of the outer tie rod height which in turn can help reduce or eliminate toe change during wheel travel. This kit includes a heavy duty 5/8" bolt and washer kit with a wide adjustment range along with...

UMI’s 2nd gen F-Body bump steer kit is designed to reduce or eliminate toe change during suspension travel (also known as “bump steer”). Reduction of bump steer improves handling and straight line stability and enhances overall precision of the steering system. These direct bolt-in...

UMI introduces the 2nd Gen F-body & 78-96 B-Body adjustable upper a-arms, offering a perfect balance of performance and street versatility. These a-arms provide enhanced steering precision with added caster, along with easy adjustments for caster and camber. Crafted from robust tubular construction with...

UMI introduces the 2nd Gen F-body & 78-96 B-Body adjustable upper a-arms, offering a perfect balance of performance and street versatility. These a-arms provide enhanced steering precision with added caster, along with easy adjustments for caster and camber. Crafted from robust tubular construction with...

Introducing UMI’s 2nd Gen F-body and 78-96 B-Body adjustable upper a-arms – the ultimate combination of race-worthy performance and street-smart versatility. Enjoy improved cornering traction and steering precision with our P/N 2656-1 adjustable upper a-arms. Achieve the perfect balance of caster and camber adjustment...

Introducing UMI’s 2nd Gen F-body and 78-96 B-Body adjustable upper a-arms – the ultimate combination of race-worthy performance and street-smart versatility. Enjoy improved cornering traction and steering precision with our P/N 2656-1 adjustable upper a-arms. Achieve the perfect balance of caster and camber adjustment...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 2655 arms are strong yet lightweight and feature a removable lower mounting system to permit spring changes...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 2655 arms are strong yet lightweight and feature a removable lower mounting system to permit spring changes...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 2655-1 arms are strong yet lightweight and feature a removable lower mounting system to permit spring or...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 2655-1 arms are strong yet lightweight and feature a removable lower mounting system to permit spring or...

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. UMI’s P/N 2653 upper a-arms add caster to improve steering feel and reduce wandering. Strong tubular construction and UMI built Delrin bushings ensure precision performance and enhance steering...

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. UMI’s P/N 2653 upper a-arms add caster to improve steering feel and reduce wandering. Strong tubular construction and UMI built Delrin bushings ensure precision performance and enhance steering...

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. Our P/N 2653-1 upper a-arms add caster to improve steering feel and reduce wandering while incorporating a ½” taller than stock ball joint to improve camber gain. Strong...

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. Our P/N 2653-1 upper a-arms add caster to improve steering feel and reduce wandering while incorporating a ½” taller than stock ball joint to improve camber gain. Strong...

UMI’s 2nd Generation F-Body performance a-arms are perfect for the F-Body enthusiast seeking to improve the performance and blur the lines between race and street use. This kit features caster relocation of both the upper and lower ball joints to enhance steering feel and...

UMI’s 2nd Generation F-Body performance a-arms are perfect for the F-Body enthusiast seeking to improve the performance and blur the lines between race and street use. This kit features caster relocation of both the upper and lower ball joints to enhance steering feel and...

UMI’s 2nd Generation F-Body a-arm kit, P/N 265253-1 is designed to make your classic cruiser feel like modern muscle. Increased positive caster combined with improved camber curve and low friction Delrin bushings make for a well-tuned front end. Increased caster is achieved relocating both...

UMI’s 2nd Generation F-Body a-arm kit, P/N 265253-1 is designed to make your classic cruiser feel like modern muscle. Increased positive caster combined with improved camber curve and low friction Delrin bushings make for a well-tuned front end. Increased caster is achieved relocating both...

Upgrade your front suspension with UMI’s high-quality A-arms for improved performance and appearance. Specifically designed for 1970-1981 GM F-body and 1978-1996 GM B-Body vehicles, these A-arms optimize steering feel and stability at high speeds. They feature caster relocation, chromoly offset cross shafts, and a...

Upgrade your front suspension with UMI’s high-quality A-arms for improved performance and appearance. Specifically designed for 1970-1981 GM F-body and 1978-1996 GM B-Body vehicles, these A-arms optimize steering feel and stability at high speeds. They feature caster relocation, chromoly offset cross shafts, and a...

UMI’s 2nd Generation F-Body a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. This kit features caster relocation of both the upper and lower ball joints to enhance steering feel and improve high speed stability....

UMI’s 2nd Generation F-Body a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. This kit features caster relocation of both the upper and lower ball joints to enhance steering feel and improve high speed stability....

Upgrade your front suspension with UMI’s A-arms to improve performance and appearance. Designed specifically for 1970-1981 GM F-body and 1978-1996 GM B-Body vehicles, these A-arms enhance steering feel and stability at high speeds. They feature caster relocation, chromoly offset cross shafts, and a heavy-duty...