Suspension

UMI Performance's single adjustable lower control arms combine an polyurethane bushing on one end with a QA1 spherical rod end on the other. This design allows for rear-end adjustment and minimizes bind, enhancing handling in high-performance situations. Suitable for drag racing, autocross, and street...

UMI Performance's single adjustable lower control arms combine an polyurethane bushing on one end with a QA1 spherical rod end on the other. This design allows for rear-end adjustment and minimizes bind, enhancing handling in high-performance situations. Suitable for drag racing, autocross, and street...

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...

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 weld-in brackets are CAD designed to accommodate factory lower control arms as...

UMI’s 1-¼" (32mm) solid front sway bar greatly improves the cornering capability of the S10/S15. This bar reduces body roll and helps plant the front tires without ruining ride quality and comfort. Each bar is manufactured from CNC bent 4140 CrMo which features excellent...

UMI’s 1-¼" (32mm) solid front sway bar greatly improves the cornering capability of the S10/S15. This bar reduces body roll and helps plant the front tires without ruining ride quality and comfort. Each bar is manufactured from CNC bent 4140 CrMo which features excellent...

Stock trailing arms work fine for every day driving but when hard cornering and pressure is applied they are sure to add inconsistent handling. Our tubular trailing arms are designed to out perform the stock stamped arms by reducing flex and decreasing bushing deflection....

Stock trailing arms work fine for every day driving but when hard cornering and pressure is applied they are sure to add inconsistent handling. Our tubular trailing arms are designed to out perform the stock stamped arms by reducing flex and decreasing bushing deflection....

Improve handling and reduce body roll with UMI's 1965-1970 GM B-Body front sway bar. Street performance friendly 1-1/8" diameter bar controls body roll better than factory bars. Includes greaseable polyurethane chassis bushings as well as proper length end links. Tough UMI red or gloss...

Improve handling and reduce body roll with UMI's 1965-1970 GM B-Body front sway bar. Street performance friendly 1-1/8" diameter bar controls body roll better than factory bars. Includes greaseable polyurethane chassis bushings as well as proper length end links. Tough UMI red or gloss...

This heavy duty fabricated mount from UMI Performance is designed to add a second rear upper control arm to a 1965-1970 Chevrolet Impala, Caprice or Biscayne. Bracket welds to the driver side of the rear end allowing an attachment point for the second upper...

This beefy 1” solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. Our sway bar is manufactured from 1” solid high carbon steel, heat treated and formed as one piece to ensure...

This beefy 1” solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. Our sway bar is manufactured from 1” solid high carbon steel, heat treated and formed as one piece to ensure...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up...

UMI Performance offers an on-car adjustable control arm for the rear of the GM B-Body vehicle. This rear upper control arm for the 65-66 GM B-Body is a direct replacement for the factory arms and is designed to minimize wheel hop, improve corning, and...

UMI Performance offers an on-car adjustable control arm for the rear of the GM B-Body vehicle. This rear upper control arm for the 65-66 GM B-Body is a direct replacement for the factory arms and is designed to minimize wheel hop, improve corning, and...

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", with weak materials that can lead to traction loss and poor handling. The included polyurethane bushings...

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", with weak materials that can lead to traction loss and poor handling. The included polyurethane bushings...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up...

This tubular set-up quickly and easily replaces the stock panhard bar on the 65-70 GM B-Body vehicle adding increased rear end stability and rear end adjustment. This adjustable item allows on-car adjustment when rear end centering is needed. By lengthening or shortening the panhard...

This tubular set-up quickly and easily replaces the stock panhard bar on the 65-70 GM B-Body vehicle adding increased rear end stability and rear end adjustment. This adjustable item allows on-car adjustment when rear end centering is needed. By lengthening or shortening the panhard...

This tubular set-up quickly and easily replaces the stock panhard bar on the 65-70 GM B-Body vehicle. After more then 35 years of abuse the stock panhard bar is usually rusted and corroded with bushings cracked and dry rotted. This new replacement panhard bar...

This tubular set-up quickly and easily replaces the stock panhard bar on the 65-70 GM B-Body vehicle. After more then 35 years of abuse the stock panhard bar is usually rusted and corroded with bushings cracked and dry rotted. This new replacement panhard bar...

UMI Performance offers an on-car adjustable control arm for the rear of the GM B-Body vehicle. This control arm is a direct replacement for the factory arms and helps minimize wheel hop and improve cornering. It allows for easy pinion angle adjustments without the...

UMI Performance offers one of the only on-car adjustable control arms for the rear of the GM B-Body vehicle. This rear upper control arm for the 65-66 GM B-Body is an excellent solution when looking to replace the worn out factory set-up. Our rear...

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. The...

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. The...

Whether your classic Chevrolet B-body is a restoration project, street car or drag car the UMI control arms will be an excellent upgrade. These new manufactured boxed control arms are a direct bolt in designed to replace the factory stamped control arms. Over time...

Whether your classic Chevrolet B-body is a restoration project, street car or drag car the UMI control arms will be an excellent upgrade. These new manufactured boxed control arms are a direct bolt in designed to replace the factory stamped control arms. Over time...

This adjustable tubular panhard bar replaces the stock bar on 58-64 GM B-Body vehicles, enhancing rear-end stability and alignment. It allows on-car adjustments to center the rear end by simply loosening two jam nuts, providing extra tire clearance and proper alignment. The bar features...

This adjustable tubular panhard bar replaces the stock bar on 58-64 GM B-Body vehicles, enhancing rear-end stability and alignment. It allows on-car adjustments to center the rear end by simply loosening two jam nuts, providing extra tire clearance and proper alignment. The bar features...

This adjustable tubular panhard bar replaces the stock bar on 58-64 GM B-Body vehicles, enhancing rear-end stability and alignment. It allows on-car adjustments to center the rear end by simply loosening two jam nuts, providing extra tire clearance and proper alignment. The bar features...

This tubular set-up quickly and easily replaces the stock panhard bar on the 59-64 GM B-Body vehicle. After more then 35 years of abuse the stock panhard bar is usually rusted and corroded with bushings cracked and dry rotted. This new replacement panhard bar...

UMI Performance offers on-car adjustable rear control arms for GM B-Body vehicles. These direct replacements for factory arms reduce wheel hop, improve cornering, and enhance track consistency. The adjustable design allows pinion angle adjustments without removal. Features include grease-able bushings, TIG welded construction, and...

UMI Performance offers on-car adjustable rear control arms for GM B-Body vehicles. These direct replacements for factory arms reduce wheel hop, improve cornering, and enhance track consistency. The adjustable design allows pinion angle adjustments without removal. Features include grease-able bushings, TIG welded construction, and...

Upgrade your GM vehicle's suspension with rear control arms for better performance and handling. Stock control arms often suffer from bushing deflection and weak materials, leading to traction loss and poor handling. Our control arms come with polyurethane bushings, enhancing ride quality and reducing...

Upgrade your GM vehicle's suspension with rear control arms for better performance and handling. Stock control arms often suffer from bushing deflection and weak materials, leading to traction loss and poor handling. Our control arms come with polyurethane bushings, enhancing ride quality and reducing...

Upgrade your Chevrolet B-Body's rear suspension with the UMI Performance control arm kit. Ideal for restoration, street cars, cruising, or drag racing, this kit is a direct bolt-on replacement for stock stamped control arms and panhard bar. Over time, stock components rust and weaken,...

Upgrade your Chevrolet B-Body's rear suspension with the UMI Performance control arm kit. Ideal for restoration, street cars, cruising, or drag racing, this kit is a direct bolt-on replacement for stock stamped control arms and panhard bar. Over time, stock components rust and weaken,...

Upgrade your classic Chevrolet B-Body with the UMI Performance control arm kit. Ideal for restoration, street use, cruising, or racing, this kit replaces your stock stamped control arms and panhard bar. Over time, stock components rust and weaken, affecting performance. UMI P/N 365001 includes...

Upgrade your classic Chevrolet B-Body with the UMI Performance control arm kit. Ideal for restoration, street use, cruising, or racing, this kit replaces your stock stamped control arms and panhard bar. Over time, stock components rust and weaken, affecting performance. UMI P/N 365001 includes...

UMI Performance control arms are an excellent upgrade for your classic B-Body, ideal for restoration projects, street cars, cruisers, or drag racers. These boxed control arms directly replace stock stamped steel versions, which can rust and weaken over time. The included grease-able polyurethane bushings...

UMI Performance control arms are an excellent upgrade for your classic B-Body, ideal for restoration projects, street cars, cruisers, or drag racers. These boxed control arms directly replace stock stamped steel versions, which can rust and weaken over time. The included grease-able polyurethane bushings...

UMI's rear sway bar bracket install kit connects a UMI 3634 rear sway bar to GM factory trailing arms. This kit is commonly used when the B-body was not rear sway bar equipped from the factory. Kit includes CNC machined adapter blocks as well...

Upgrade your GM B-Body's handling with UMI's comprehensive sway bar kit. This kit includes both front and rear sway bars, engineered to reduce body roll and enhance cornering stability.This Part Fits: Year Make Model Submodel 1978-1981 Buick LeSabre Base 1985 Buick LeSabre Collector's Edition...