Availability
UMI Performance Rear control arms and panhard bars are direct bolt-on replacements designed to minimize wheel hop and improve cornering and track consistency, while lowering ETs. The control arms are constructed from a DOM mild steel tubing 1.375 in. o.d. x 0.095 in. wall and are completely CNC-machined and fully TIG-welded for outstanding strength. The adjustable models feature spherical rod ends that allow for "bind-free" operation, making them great upgrades for both your track and autocross-driven vehicles. The Roto-Joint equipped models are designed to work like a spherical rod end while maintaining the qualities of a softer bushing. Roto-Joints feature a 4140 chromoly ball that rotates in a Delrin race. Additional features include: * Control arms are 1.375 in. x 0.095 in. mild steel tubing * 4130 chromoly threaded tube adapter (adjustable models only) * 3/4 in. hard chrome plated PTFE/KEVLAR® self-lubricating race rod end * TIG-welded construction * CNC-machined 6061 aluminum step bushings with zinc plated steel sleeves (where applicable) * Polyurethane greasable bushings * On car grease fittings (except rod ends) * Use OEM hardware
( 83 )
$189.99
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$749.99
UMI Performance Stage 2 handling kits will make any classic cruiser feel like a modern day muscle car! They are designed to bring you superior ride quality and improved handling, while giving you the lowered, aggressive stance you're looking for. These kits include everything you need to rebuild the suspension on your classic ride, such as upper and lower front A-arms, heavy-duty UMI sway bars with new end links, greaseable bushings, Bilstein HD shocks, UMI lowering springs, rear tubular upper and lower control arms, replacement rear end housing bushings, and heavy-duty tubular frame braces. UMI Performance Stage 2 handling kits are made of superior-quality materials to ensure long-lasting durability and performance. These UMI Performance Stage 2 handling kits are perfect for the weekend warrior looking to go for a back road cruise, perhaps hit the drag strip, or even an Auto-x.
( 4 )
$3,059.99
UMI Performance rear control arms and sway bar kits are direct bolt-on replacements designed to minimize wheel hop and improve cornering and track consistency, while lowering ETs. They include upper and lower control arms, adjustable frame braces, bushings, rear sway bar, and Grade 8 mounting hardware. Choose the powdercoat finish you prefer.
( 14 )
$799.99
UMI Performance Stage 1 handling kits are designed to bring you great ride quality and improved handling, while giving your musclecar the lowered, aggressive stance you want at an inexpensive price. These kits include heavy-duty UMI sway bars with new end links and greasable bushings, four Bilstein HD shocks, and a set of UMI 1 in. lowering springs. If you're looking to change the stance of your ride and get some added performance, look no further than these UMI Performance Stage 1 handling kits.
( 1 )
$1,168.99
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$1,499.99
UMI Performance Stage 2.5 handling kits bring you the best of both worlds—combining UMI's Stage 2 handling kit with four-corner Viking coilover ride height adjustability. These Stage 2.5 handling kits feature UMI's most popular combination of front and rear springs, along with all the necessary components and hardware needed to transform your GM vehicle for improved handling, ride quality, and an impressive stance. Ride height is adjustable from stock to 2 in. below stock ride height, and the Viking shocks feature 19 settings in both compression and rebound. More than a dozen kits are available, with numerous options. Select the model recommended for your vehicle. Stage 2.5 handling kits include: * Tubular lower front A-arms with polyurethane bushings * Upper front A-arms with Delrin© bushings * Viking coilover kit * Heavy-duty front sway bar with new bushings and end-links * Front upper and lower race-quality hardware kit * Solid heat-treated rear sway bar * Tubular rear lower control arms with polyurethane bushings * Tubular rear upper control arms with polyurethane bushings * Tubular frame braces with hardware * Replacement rear-end housing bushings * Rear control arm race-quality hardware kit * UMI bolt-on rear coilover kit * Thrust bearing kit (x 2) * Spanner wrench kit Note: Rear coilover kit fits GM axle housing only. Aftermarket axle housing fitment is not guaranteed.
Not Yet Reviewed
$4,369.99
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$4,649.99
Tremendous front grip and a host of features can be yours with UMI Performance Competition front-end kits. The included A-arm kit enables 10 degrees caster while maintaining standard track width and wheelbase. Lower A-arms are assembled with tall lower ball joints to optimize roll center, camber gain, and center of gravity. Lower A-arms feature Delrin bushings for smooth travel and bind-free performance. The new lower A-arm works in conjunction with the included adjustable upper arm—which features minimum shim adjustability, Pro Forged ball joints, and super-smooth PTFE lined rod ends. The front sway bar attaches using UMI's swivel-style end link design and double shear mounting system. The included Viking Crusader coilover shocks mount to the lower A-arm in double shear quick-change brackets. The lower shock mount is removable to allow spring and shock changes at the track. UMI's kit features Viking Crusader shocks with AT pro-touring valving (high rebound tie-down for road race and autocross) and a true 2.5 in. racing coilover. The upper stud mount fits in the factory location, while the lower is optimized to fit UMI's 3057-1 coilover lower A-arm. Some grinding is required for installation in the upper frame spring bucket. Other spring rates and valve codes are available. The Competition kits have been battle-tested on the iconic UMI Green Machine. Kits are available in red or black powdercoat; and are 100 percent designed, manufactured, and raced with pride in the USA.
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$2,259.99
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$2,289.99
UMI Performance 1993-97 F-Body LT1 Stage 2 front-end kits provide a strong foundation for your street car designed for drag strip use. They offer a balanced combination of weight reduction, strength, performance, and comfort. Known as the strongest in their class, the dual tube K-member can handle wheel stand landings and street abuse while minimizing weight and protecting the oil pan. The lower arms feature poly bushings in the straight strut portion to absorb road noise, while the non-adjustable uppers guide the suspension using greaseable poly bushings. Both upper and lower A-arms are assembled with premium ball joints, saving an additional 8 lbs. UMI's K-member and A-arms are constructed from durable DOM tubing, which is precisely bent, CNC-notched, and welded in a jig to create a solid base. The included K-member is compatible with factory motor mounts, polyurethane motor mounts, or UMI's popular solid billet aluminum motor mounts. Stage 2 kits are a direct bolt-in replacement that removes front-end weight while maintaining street comfort and enhancing performance. UMI's Stage 2 includes: * Tubular dual tube K-member * Tubular street lower A-arms * Tubular street upper A-arms with polyurethane bushings * Grade 10.9 hardware with Ny-lock nuts Product features: * Heavy-duty K-member with dual tube construction * Tubular upper and lower A-arms with greaseable polyurethane bushings * Premium upper and lower ball joints installed * 33 lbs. of front-end weight savings * Chromoly A-arms save an additional 1 1/2 lbs. * Works with factory steering rack * Includes new grade 10.9 A-arm mounting hardware * Direct bolt-in replacement, no welding
Not Yet Reviewed
$1,789.99
UMI Performance Stage 3 handling kits are designed to help you achieve a high level of performance pro-touring handling capabilities, while not compromising the comfort of your everyday commute. They deliver precision steering, as well as excellent handling and balance, with superior-quality parts components you won't find in other handling kits. Kits include the following features: * Increased spindle height by 1/2 in. via tall upper ball joints for improved camber gain and a better contact patch. Works nicely in conjunction with lowering springs * Upper A-arms add caster for improved steering feel and straight line stability * Lower A-arms feature UMI-built Delrin bushings and accept standard springs or coilovers * 1.25 in. front sway bar for flat cornering, CNC-bent from 4140 balanced with 1 in. solid heat-formed rear sway bar * Shocks feature monotube construction and are designed and tuned for optimum ride quality, combined with responsive handling * UMI springs feature ultra premium CrSi material with linear rates front and rear for consistent handling * Rear trailing arms feature poly and roto-joints, as well as adjustable uppers for setting pinion angle and rear lateral location * Roto-Joints allow for smooth articulation for improved handling and less bind
( 1 )
$3,569.99
UMI Performance rear adjustable upper and non-adjustable lower control arms are direct replacements for the OEM setup. They add strength, ride improvement, and most importantly, rear-end adjustment. UMI Performance rear adjustable upper control arms are constructed from aircraft-quality 4140 chromoly steel and feature TIG-welded construction. The upper control arm mounting points feature CNC-machined 0.250 in. mild steel, 4140 chromoly tube adapters, and a high-strength, 4140 chromoly, heat-treated, 1.000 in. solid adjuster. UMI Performance rear lower control arms feature CNC-machined 0.120 in. wall thickness mild steel tubing, fully TIG-welded construction, greasable polyurethane bushings, and Zerk grease fittings. Additional features include: * On-car adjustability * 4140 chromoly threaded tube adapters * 3/4 in. hard chrome plated PTFE/KEVLAR® self-lubricating race rod ends * CNC-machined 6061 aluminum step bushings * Durable powdercoated finish
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$469.99
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$869.99
UMI Performance 1993-2002 GM F-Body 3-pt. subframe connectors and torque arm kits provide an easy bolt-on drag race solution for GM F-bodies. These suspension connectors reinforce the chassis and prevent quarter-panel wrinkling from hard launches; a tunnel-mounted torque arm is the proven solution to reduce 60 ft. times. Shortened torque arm improves instant center location; as a result, forward traction is improved. These kits include removable and replaceable NHRA-approved driveshaft loop. Using both parts together dramatically reduces chassis flex. Product features: * 3-pt. subframe connectors reinforce chassis and prevent quarter-panel buckling * Shorter than stock, tunnel-mounted torque arm improves forward traction * Complete kit braces entire underside of car to reduce chassis flex * NHRA approved driveshaft loop (removable and replaceable) * Includes hardware
Not Yet Reviewed
$699.99
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$1,099.99
UMI Performance complete front-end kits offer improved handling and great value. These non-adjustable upper and lower A-arm kits not only save you dollars, but weight on your front-end, while adding strength, better ride quality, and reduced bushing deflection. Built from strong DOM tubing, the fully assembled and ready-to-install A-arms have CNC-machined upper and lower ball joint holders and 4140 chromoly cross shafts. UMI upper A-arms feature greaseable Delrin® bushings, and the lower A-arms are supplied with new lower ball joints installed, polyurethane bushings, and sway bar mounting provisions. These UMI kits are designed to work with factory springs and lowering springs mounted in the factory location. The A-arms are given a durable and brilliant powdercoat finish. Order the complete front-end kit designed to fit your vehicle.
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$1,329.99
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$1,489.99
UMI Performance rear double adjustable upper and lower control arms are the most important things when tuning in your street car's suspension. UMI Performance rear double adjustable upper control arm mounting points feature CNC-machined 0.250 in. mild steel, 4140 chromoly tube adapters, and a high-strength, 4140 chromoly, heat-treated, 1.000 in. solid adjuster. UMI Performance rear lower control arms feature TIG-welded fabrication, reinforced sway bar holes, and PTFE-lined spherical rod ends. The construction of the lower control arms features 0.120 in. x 1.500 in. mild steel DOM tubing. Each end utilizes threaded tube adapters that are CNC-machined from 4140 chromoly to ensure overall strength and improved thread durability. Additional features include: * On-car adjustability * 3/4 in. hard chrome plated PTFE/KEVLAR® self-lubricating race rod ends * Precision CNC-machined and fully welded * CNC-machined 6061 aluminum step bushings * Durable powdercoated finish
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$619.99
UMI Performance adjustable lower and double adjustable upper control arms are direct bolt-on replacements designed to minimize wheel hop. UMI Performance double adjustable upper control arms feature on-car adjustability, allowing for quick and easy pinion angle adjustment, and yes, it's as simple as loosening two nuts! The spherical rod end allows for a "bind-free" operation, making them great upgrades for both your track and autocross-driven vehicles. The polyurethane bushings are designed to be bolted to the chassis for quiet, comfortable operation. UMI Performance adjustable lower control arms are constructed from DOM mild steel tubing with a 1.500 in. o.d. x 0.120 in. wall and a 4130 chromoly threaded tube adapter. They are completely CNC-machined and fully TIG-welded for outstanding strength. The lower control arms also feature reinforced spring perches and heavy-duty sway bar mounting points. The upper control arms feature 0.250 in. mild steel mounting points, a 4130 chromoly tube adapter, and a 4140 chromoly heat-treated 1.120 in. solid adjuster--truly overkill. These control arms feature polyurethane bushings, zinc plated steel sleeves, and "on-car" greasable Zerk fittings. Adjustments can be made using the high-quality, PTFE-lined spherical rod ends for quiet, bind-free performance. Additional features include: * QA1 3/4 in. hard chrome plated, PTFE/KEVLAR® self-lubricating race rod end * CNC-machined 6061 aluminum step bushings with zinc plated steel sleeves * Powdercoated finish * Use OEM hardware
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$499.99
UMI's 2nd Generation F-body lower A-arms are perfect for the F-body enthusiast seeking to improve the performance and appearance of their front suspension. They feature caster relocation of the ball joint to enhance steering feel and improve high-speed stability. UMI Performance 1970-81 GM F-body front lower A-arm kits are built with heavy-duty spring buckets, premium ball joints, laser-cut reinforcement plates, double-shear sway bar end links, and either polyurethane or Delrin® bushings. Available with a red or black powdercoating, choose the color and bushings preferred. Additional features: * Ball joint relocation increases caster by 2 degrees for enhanced performance * 1.500 in. DOM steel tubing construction * Heavy-duty spring bucket accepts factory and aftermarket coil springs * Spring bucket is compatible with popular hybrid coils, such as Viking and QA1 * Laser-cut UMI reinforcement plates add a great appearance and excellent strength * High-quality greaseable polyurethane bushings and bump stops provide a crisp yet comfortable ride * Delrin® bushings enhance steering precision and reduce friction for all racing applications * Double shear, swivel-style sway bar mounts and hardware work with UMI's front sway bar and most other factory eyelet-style sway bars
Not Yet Reviewed
$729.99
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$789.99
UMI 2nd Gen F-body upper A-arms are key components of a great handling muscle car, adding 4 degrees of caster to improve steering feel and reduce wandering. Strong 1.250 in. DOM steel tubular construction and UMI-built greaseable Delrin® bushings ensure precision performance along with an enhance steering response, while the 4140 chromoly offset cross shaft enhances strength and permits camber adjustment to minimize shims required. Great for street and race use, UMI Performance 1970-81 GM F-body front upper A-arm kits are offered with stock or 1/2 in. taller-than-stock ball joints for improved cornering performance and lateral grip. They are also equipped with a polyurethane pancake-style bump stop for smooth rebound control and available in UMI red or gloss black powdercoat. Choose the preferred kit for your vehicle.
Not Yet Reviewed
$599.99
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$679.99
UMI Performance 1970-81 GM F-body front upper/lower A-arm kits are perfect for the F-body enthusiast seeking to improve the performance and appearance of their front suspension. These direct bolt-in kits feature caster relocation of both the upper and lower ball joints to enhance steering feel and improve high-speed stability. Features and benefits: * Spindle pin location remains unchanged, so fender clearance is like stock * Laser-cut UMI reinforcement plates add a great appearance and excellent strength * Chromoly offset cross shaft upper to reduce number of shims required * 5 to 7 degrees of total positive caster. 0 to 2 1/2 degrees of negative camber * Upper ball joint moved rearward to add 3 to 4 degrees caster potential * Lower ball joint relocated forward to increase caster 2 degrees which improves steering feel and straight line stability * Upper a-arm assembled with UMI-built Delrin® bushings for crisp steering response * Upper and lower a-arms built from USA-made DOM steel tubing * Heavy-duty spring bucket accepts factory and aftermarket coil springs * Spring bucket is compatible with popular hybrid coils, such as Viking and QA1 * High-quality polyurethane bushings and bump stops provide a crisp yet comfortable ride * Double shear swivel sway bar mounts and hardware work with UMI sway bars and most other factory eyelet-style sway bars * Available in red or gloss black powdercoat
Not Yet Reviewed
$1,329.99
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$1,489.99
UMI Performance extended length lower/adjustable upper control arm kits tackles the factory wheelbase problem. The extended-length (5/8 in.) lowers reposition the wheel properly in the wheelhouse, while the extended length rod end-adjustable uppers control pinion angle and lateral location. The kits are available with a durable red or black powdercoat finish. Choose a set designed for your vehicle in the color you prefer.
Not Yet Reviewed
$619.99
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$669.99
UMI Performance rear non-adjustable upper and lower control arms are designed to give you the best of both worlds. Whether you're a weekend cruiser or a weekend track addict, we've got you covered. While adding ride improvements, they also work great for reducing traction loss. These control arms are direct bolt-on replacements designed to minimize wheel hop, improve cornering, and help with track consistency. The lower control arms are supplied with sway bar mounting holes designed for your stock sway bar and most aftermarket bars. Additional features include: * Built using 1.625 in. o.d. x 0.120 in. mild steel tubing * CNC-machined for precision tolerances and accuracy * Fully TIG and MIG-welded construction * Durable powdercoated finish
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$249.99
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$799.99
UMI Performance adjustable lower and fixed length non-adjustable upper control arms are direct bolt-on replacements designed to minimize wheel hop. UMI Performance fixed length adjustable lower control arms are constructed from DOM mild steel tubing with a 1.500 in. o.d. x 0.120 in. wall and a 4130 chromoly threaded tube adapter. They are completely CNC-machined and fully TIG-welded for outstanding strength. These lower control arms feature reinforced spring perches and heavy-duty sway bar mounting points. UMI Performance fixed length non-adjustable upper control arms feature 0.250 in. mild steel mounting points and 1.625 in. x 0.120 in. DOM steel tubing. Both upper and lower control arms feature polyurethane bushings, zinc plated steel sleeves, and "on-car" greasable Zerk fittings. Their spherical rod end allows for "bind-free" operation, making them great upgrades for both your track and autocross-driven vehicles, while the polyurethane bushings are designed to be bolted to the chassis of the vehicle for quiet, comfortable operation. Additional features include: * QA1 3/4 in. hard chrome plated, PTFE/KEVLAR® self-lubricating race rod end * CNC-machined 6061 aluminum step bushings with zinc plated steel sleeves * Powdercoated finish * Use OEM hardware
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$419.99
UMI Performance SBC poly engine mount kits are ideal for high performance street driven vehicles. Direct bolt-in replacements for worn-out factory rubber and clamshell mounts, the polyurethane engine mounts bridge the gap between race oriented solid mounts and cruiser oriented rubber mounts. UMI Performance SBC poly engine mount kits are race-proven on the UMI Green Machine. Features and benefits: * 3/16 in. mild steel fabricated steel construction with poly insert * Polyurethane bushing for increased torque resistance over factory rubber * Less Noise/Vibration/Harshness (NVH) than solid mounts * Black powdercoat and poly bushings with zinc plated anti-crush sleeve * Includes engine side and chassis side mount * Includes all mounting hardware * Note: Sold and works as a kit only
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$109.99
UMI Performance adjustable upper and lower control arms include tubular single adjustable lower and on-car adjustable upper control arms. These control arms are direct replacements for the OEM setup. They add strength, ride improvement, and most importantly, rear-end adjustment. Additional features include: * 1.500 in. x 0.120 in. mild steel tubing * TIG-welded 4140 chromoly tube adapters * Complete arm features TIG-welded construction * Polyurethane greasable bushings * Durable, long-lasting powdercoated finish * 3/4 in. hard chrome plated PTFE/KEVLAR® self-lubricating race rod end
( 18 )
$429.99
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$869.99
UMI Performance torque arm relocation kits are designed to remove the front mounting point of the torque arm off of the transmission and protect the tailshaft from damage. General Motors' tailshaft mounted design works great for a stock-driven vehicle; however, it is not designed to take abuse and hard launches. UMI Performance torque arm relocation kits replace your transmission crossmember with a new, stronger setup with a built-in torque arm mount. Each relocation kit is designed to fit a specific transmission and will work with virtually any stock-style aftermarket torque arm, as well as with the factory torque arm. These units are built using rectangular mild steel tubing and 0.188 in. mild steel mounting plates and they include all hardware needed for installation. The torque arm mount is machined from 0.250 in. thick mild steel and features a new clamshell for appropriately attaching the torque arm to the new crossmember.
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$269.99
UMI Performance sway bars are designed to reduce body roll and understeer and increase cornering capabilities, resulting in a more balanced suspension. The front sway bar is more rigid than the factory model and comes complete with new polyurethane end links and greaseable sway bar bushings. The rear sway bar is supplied with new Grade 8 mounting hardware and locknuts. UMI Performance sway bars are manufactured from 4140 chromoly steel—and formed as one piece to ensure maximum strength and performance. Each rear sway bar is heat-treated and heat-formed to maintain longer memory than a cold bent bar, while the front sway bar is CNC-bent for a precise and accurate fit every time. Order the kit recommended for your vehicle.
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$396.47
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$579.99
The GM 4-link suspension has many things going for it, but modern ingenuity and materials have made for some exceptional replacement parts—such as UMI Performance Roto-Joint rear-end housing bushings. These bushings allow full articulation of GM's rear 4-link suspension when they're used in conjunction with rod ends or Roto-Joints in the other six locations. A gentle press fit is all that's needed for installation, and a spiral retaining ring keeps them in place. Pre-greased 6061 T-6 aluminum housings use Synco Super Lube to deliver smooth action for many years. Whether you use your vehicle for road racing, corner hugging, or Sunday driving, you'll feel safe in knowing your rear suspension will fully articulate with UMI Performance Roto-Joint rear-end housing bushings.
( 7 )
$169.99
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