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UMI Performance Front Sway Bars
UMI Performance front sway bars are designed to reduce body roll and under-steer and increase corning capabilities, resulting in a more balanced suspension. These front sway bars are more rigid than the factory originals and will bolt directly in place with no modifications. Each kit includes new Energy Suspension end links and greaseable sway bar bushings with new zinc plated clamshells. Nearly two dozen models are available for vehicles from 1963 and up; order the sway bar recommended for your application.
( 101 )
$259.42
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$259.99
UMI Performance SBC Poly Engine Mount Kits
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
( 11 )
$109.99
UMI Performance Complete Front End Kit
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.
( 39 )
$1,329.99
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$1,409.99
UMI Performance Front Non-Adjustable Lower A-Arms
A lightweight setup capable of handling everyday street abuse! UMI Performance front non-adjustable lower A-arms remove 5 1/2 lbs. from of the front of your vehicle, while adding increased ride quality and reducing bushing deflection. These suspension control arms are supplied with new greaseable ball joints installed, polyurethane or Delrin® bushings, and sway bar mounting provisions. The A-arm replacements are fabricated using 1.250 in. drawn-over-mandrel tubing and CNC-machined ball joint holders. They feature both MIG and TIG welding for the utmost in product strength. Order the pair recommended for your vehicle. Additional features: * 1.250 in. x 0.120 in. mild steel tubing * Shock mounts are CNC-machined from 0.188 in. steel plate * Supplied fully assembled and ready to install * Durable black or red powdercoat finish * Use OEM hardware
( 10 )
$702.70
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$799.99
UMI Performance Rear Non-Adjustable Upper and Lower Control Arm Kits
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
( 106 )
$368.82
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$369.96
UMI Performance Front Bump Steer Adjuster Kits
The suspension's job is to ensure that your vehicle stays as level and smooth as possible. UMI Performance front bump steer adjuster kits are designed to improve handling and straight line stability by decreasing or eliminating toe change during suspension travel. These simple bolt-on kits allow you to relocate the outer tie rod end, with no spindle drilling required. The 6061 T-6 aluminum hex is hard black anodized for corrosion protection and lightweight strength. Included in the kits are race-quality rod ends, jam nuts, spacers, and locking hardware.
( 13 )
$169.99
UMI Performance Front and Rear Sway Bar Kits
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.
( 72 )
$419.99
UMI Performance Lowering Springs
Lower your car properly with UMI Performance lowering springs. The front springs are wound from 5160 chrome silicon wire, while the rear springs are made from 9254 chrome silicon. The linear spring rates of each provide a firm but comfortable ride with exceptional handling. Suitable for Pro-Tour, Autocross, and general cruising, these lowering springs are finished with a tough black powdercoat and are available for the front, rear, or in kits with both. Order the parts designed for fitment with your vehicle's suspension. Not all springs are alike—the proof is UMI Performance lowering springs.
( 140 )
$169.99
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$319.99
UMI Performance Bolt-In Viking Front Coilover Kits
UMI Performance bolt-in Viking front coilover kits offer a true 2 1/2 in. racing coilover setup for your ride. UMI's Viking Worrier shocks are double adjustable and easily change from street use to high rebound force for race use. By increasing the rebound force, you can eliminate pitch and roll while making the car stay flat during transitions. Viking Worrier shocks offer a wide range of compression dampening and can be dialed in from a comfortable cruise setting all the way up to full race settings. The kits are available with different spring rates; order the kit designed to fit your vehicle. Additional details: * Viking shocks use upper/lower bearings, eliminating polyurethane and rubber, for crisp response and great reliability * Adjustable compression * Adjustable high rebound Worrier AT valving * CNC laser-cut brackets with black powdercoat finish offer precision fit * Direct bolt-in with no welding, minor trimming required
( 6 )
$764.99
UMI Performance Front Reinforcement Braces
UMI Performance front reinforcement braces reduce squeaks and rattles common with the GM G-body platform. This welded steel tubing will stiffen the front frame horns and front crossmember area, and no drilling is required for installation. Grade 8 hardware is included to easily bolt the triangular brace onto your chassis. UMI front reinforcement braces are designed and manufactured with pride, and are available in your choice of powdercoat colors.
( 12 )
$294.21
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$294.38
UMI Performance Rear Double Adjustable Upper and Lower Control Arm Kits
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
( 3 )
$619.99
UMI Performance Adjustable Strut Tower Braces
Bolster your street machine with UMI Performance adjustable strut tower braces. Easy to install, these braces offer an inexpensive modification with big benefits. Connecting the front strut towers makes your chassis stronger and fortifies your suspension. You'll feel the improved handling and quicker response in and out of corners. Plus, you'll be able to tweak the braces for a custom fit for your ride. Manufactured in the USA, UMI adjustable braces are crafted from mild steel tubing with CNC-machined 3/16 in. thick mounting plates and 4130 chromoly tube adapters and heavy-duty rod eyes. Strengthen your chassis for improved performance with UMI Performance adjustable strut tower braces.
( 32 )
$159.97
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$159.99
UMI Performance Rear Frame Notch Kits
UMI Performance rear frame notch kits allow for narrowing the rear upper frame rails so you can install wider tires. The precision laser-cut 1/8 in. premium steel follows the frame contour and is intentionally slightly oversized to allow for variances. The pieces are easily welded with a standard MIG welder. End enclosures are included to span from the kit to the original frame. UMI Performance rear frame notch kits require fabrication.
( 6 )
$99.99
UMI Performance Rear-End Housing Replacement Bushings
UMI Performance rear-end housing bushings will allow for the replacement of your rubber OEM bushings. UMI Performance rear-end housing polyurethane bushings replace the two upper control arm rear-end differential bushings (the bushings that stay attached to the rear-end). This will eliminate the dry rot and cracked and hardened bushings that will decrease your ride quality and performance. They are excellent upgrades for your street or track-driven vehicle.
( 65 )
$49.99
UMI Performance Rear Adjustable Upper and Lower Control Arm Kits
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 )
$519.99
UMI Performance Solid Rear Sway Bars
UMI Performance solid rear sway bars are designed to reduce body roll and under-steer and increase corning capabilities, resulting in a more balanced suspension. UMI Performance solid rear sway bars also are excellent at keeping your vehicle level and straight during those hard launches. These sway bars are manufactured from 1 in. solid high-carbon steel that's heat-treated and formed as one piece to ensure maximum strength and performance.
( 115 )
$169.99
UMI Performance Roto-Joint Rear-End Housing Bushings
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.
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$169.99
UMI Performance Rear Drag Sway Bars
Say goodbye to leaving the line sideways with UMI's rear drag sway bars. These kits are designed to get your vehicle consistently leaving the line straight, eliminate torque steer, and drastically improve 60 ft. times. The included adjustable end links allow vehicle preload to be set for straight launches. UMI's end links feature heavy-duty chromoly rod ends, which have a hard chrome plating and a PTFE self-lubricating race. The end links attach to the drag bars using 5/8 in. Grade 8 bolts and locknuts. These heavy-duty rear drag bars attach to the axle tubes using high-strength 4140 chromoly U-bolts, 3/16 in. thick fabricated mounts, and Energy Suspension bushings. The fabricated bushing mounts feature CNC-machined teeth to prevent sliding on the axle. Unlike some competitors' designs, UMI's sway bar mounts also feature gussets welded on each end to prevent the brackets from spreading while tightening.
( 5 )
$529.99
UMI Performance Heavy-Duty Engine Mounts
Decrease engine movement by replacing your factory rubber motor mounts with a set of these heavy-duty engine mounts from UMI Performance. These solid motor mounts bolt to the frame of various GM F-Body, GM G-Body and several 1974 and up GM V8 vehicles. Each steel plate mount is CNC laser cut for exact tolerances, then is fully MIG-welded and given a black powdercoat finish for long-lasting service. These mounts include Grade 8 mounting hardware.
( 16 )
$49.99
UMI Performance Coilover Bracket Kits
UMI Performance coilover bracket kits are a complete mounting solution for your factory GM G-body axle. They bolt in using the standard trailing arm mounting hole, plus an additional reinforcement hole normally used by the standard rear shock. These race-proven lower brackets feature a multi-position design to allow further fine-tuning of ride height and shock location (3/4 in. intervals). Each kit also features upper reinforcement tabs to distribute the load from the T-bar, as well as complete upper and lower hardware. UMI coilover brackets require no cutting, and optionally allow returning your car to stock at any time. Order the kit designed to fit your vehicle. Features, items, and specs: * 1/2 in. x 1 1/4 in. mount fits most standard racing shocks * 3/16 in. mild steel construction * Laser-cut for consistency and a precise fit * Powdercoated black for added durability and a lasting finish
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$149.99
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$199.99
UMI Performance Tie Rod Adjusting Sleeves
UMI Performance tie rod adjusting sleeves have heavy-duty tie rod adjusters to eliminate the factory clamp-style design, making adjustments easy and hassle-free, while enhancing steering. UMI Performance tie rod adjusting sleeves are CNC-machined from 6061 aluminum hex, feature left and right hand threads for easy on-car adjustments, and are finished in a durable black anodized coating. These tie rod adjusters work with the factory tie rod ends with no modifications.
( 25 )
$59.99
UMI Performance Solid Motor Mounts
UMI Performance solid motor mounts replace the factory rubber motor mounts, decreasing engine movement for maximal vehicle performance. These solid mounts bolt directly to the frame of the 1982-92 GM F-body and 1978-88 GM G-body, as well as many other 1974 and later GM V8 applications. Solid mounts are required to be used in conjunction with the factory clamshell. The centerline is 1 in. from the crossmember surface to the center of the hole; check your original part's dimensions before ordering. Solid mounts may not work with Oldsmobile V8-style clamshells. Additional features include: * 0.188 in. thick mild steel base plate * 1.000 in. o.d. x 0.250 in. wall thickness steel tubing * Fully MIG-welded * Durable powdercoated finish
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$129.99
UMI Performance Control Arm Reinforcement Brace Kits
The more power your ride makes, the better the chance of bending or breaking your rear control arm mounts. Beef up the upper and lower front control arm mounts on your classic with UMI Performance control arm reinforcement brace kits. These tubular reinforcements tie the upper and lower control arm mounts together for added strength and driving performance. Manufactured from DOM steel and TIG-welded, these trailing arm mount braces are adjustable for a perfect fit. Grade 8 hardware, nuts, and washers are included for a hassle-free install. Buy quality for your American-made muscle--UMI Performance control arm reinforcement brace kits.
( 28 )
$159.99
UMI Performance Transmission Crossmembers
UMI Performance transmission crossmembers are designed for late model F-bodies. These crossmembers are built using 0.120 in. rectangular tubing, 0.188 in. mild steel mounting plates, and a 0.375 in. thick transmission mount. These crossmembers are powdercoated bright red or gloss black and include new mounting hardware.
( 5 )
$349.99
