UMI Performance 15-24 Ford F-150 3/4in Extended Length Leaf Spring Pin Kit
$52.12
UMI6577
Instock
UMI Performance
UMI's leaf spring pin kit includes (4) custom extended length 4140 CrMo locating pins. These pins provide a precision way to center the leaf...
UMI Performance 73-87 GM C10 Flip Kit
$155.03
UMI6410
Instock
UMI Performance
The UMI Performance P/N 6410 flip kit lowers the rear of the 1973-1987 GM C10 truck six inches by relocating the axle above the...
UMI Performance 64-72 GM A-Body Rear Shock Tower Brace - Black
$164.32
UMI4065-B
Instock
UMI Performance
UMI's El Camino specific rear shock tower brace addresses the interference common with other shock tower braces on the market. This brace clears nicely...
UMI Performance Spring Spacer Kit
$52.12
UMI90064
Instock
UMI Performance
UMI’s rear spring spacers may be just the ticket to achieve that perfect stance or prevent tire rub. UMI’s zinc coated, laser cut mild...
UMI Performance 73-81 GM F-Body SBC Poly Engine Mount Kit
$117.63
UMI90072
Commerceinstruments Best Selling Products
Instock
UMI Performance
UMI Performance 73-81 GM F-Body SBC Poly Engine Mount Kit
UMI Performance Control Arm Adjustable Polyurethane Bushing End- GM A/G & F-Body
$52.12
UMI90013-B
Instock
UMI Performance
This fabricated bushing end is designed to replace spherical rod ends on UMI Performance control arms for select GM vehicles. It is also compatible...
UMI Performance 64-67 GM A-Body Front Frame Brace
$164.32
UMI4063-R
Instock
UMI Performance
With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace...
UMI Performance 64-72 GM A-Body Body Mount Frame Repair Kit
$45.57
UMI4055
Instock
UMI Performance
40+ years of moisture and abuse can leave your frame in bad shape, and unable to properly locate the body mounts. Our 14 piece...
UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear
$192.43
UMI4051R
Commerceinstruments Best Selling Products
Instock
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI Performance 64-66 GM A-Body 1in Lowering Spring Set Rear
$192.43
UMI4052R
Commerceinstruments Best Selling Products
Instock
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI Performance 15-24 Ford F-150 Reverse Leveling Kit
$136.27
UMI6562
Commerceinstruments Best Selling Products
Instock
UMI Performance
UMI's reverse leveling kit is the ideal product to lower the rear of your F-150. Lowering shackles are popular for adding additional rear lowering...
UMI Performance 64-72 GM A-Body 2in Lowering Spring Set Front
$174.08
UMI4051F
Commerceinstruments Best Selling Products
Instock
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI Performance 64-66 GM A-Body Factory Height Springs Rear
$192.43
UMI4048R
Commerceinstruments Best Selling Products
Instock
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI Performance 64-72 GM A-Body Upper & Lower A-Arm Mounting Hardware
$44.64
UMI4004
Instock
UMI Performance
Don't reuse old rusty bolts when installing aftermarket A-Arms when they can easily be replaced with new ones. Our kit includes new high grade...
UMI Performance 68-72 GM A-Body Control Arm Reinforcements/Frame Braces
$164.38
UMI4028-R
Instock
UMI Performance
Trailing arm mount braces are designed to reinforce the upper and lower front control arm mounts on your classic A-Body. The more power your...
UMI Performance 64-72 GM A-Body Drive Shaft Safety Loop
$89.52
UMI4500-R
Instock
UMI Performance
This one-piece NHRA legal drive shaft safety loop is a bolt-in or weld-in application for the 1964-1972 GM A-body. Drive shaft loop is contoured...
UMI Performance 59-70 Chevy B-Body Panhard Bar Hardware Kit
$25.00
UMI3607
Instock
UMI Performance
Panhard bar hardware kit includes new hardware for installing a panhard bar on the 1958-1970 Chevrolet B-Body vehicles. Kit includes grade 8 bolts, washers...
UMI Performance 67-72 GM A-Body Factory Height Springs Rear
$192.43
UMI4049R
Commerceinstruments Best Selling Products
Instock
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI Performance 59-70 Chevy B-Body Rear Upper Control Arm Hardware Kit
$28.74
UMI3606
Instock
UMI Performance
Upper rear control arm hardware kit includes new hardware for installing one upper rear control arm in the 1959-1970 Chevrolet B-Body vehicles. Kit includes...
UMI Performance 78-96 GM B-Body Solid Rear Sway Bar - Red
$264.13
UMI3634-R
Commerceinstruments Best Selling Products
Instock
UMI Performance
UMI's direct bolt-on 3634 rear sway bar decreases body roll to ensure a great handling experience. Beefy 1.125" diameter solid sway bar bolts directly...
UMI Performance 64-72 GM A-Body Tubular Lower Control Arms
$229.99
UMI4015-R
Commerceinstruments Best Selling Products
Instock
UMI Performance
Rear lower control arms are a necessary upgrade for any General Motors A-Body vehicle. Our control arms are designed to replace the weak and...
UMI Performance 78-96 GM B-Body Complete Rear Control Arm Hardware Kit
$52.12
UMI3603
Instock
UMI Performance
UMI Performance 78-96 GM B-Body Complete Rear Control Arm Hardware Kit
UMI Performance 64-72 GM A-Body 1in Solid CrMo Rear Sway Bar
$173.73
UMI4034-B
Commerceinstruments Best Selling Products
Instock
UMI Performance
Our beefy 1" solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension....
UMI Performance 78-96 GM B-Body Rear End Housing Bushings Polyurethane
$70.82
UMI3600-R
Instock
UMI Performance
UMI offers high durometer polyurethane bushings to replace the factory rubber rear end housing bushings. These bushings are designed to improve ride quality and...
UMI Performance 59-64 GM B-Body Rear Lower Control Arms/Trailing Arms
$379.99
UMI3650-B
Instock
UMI Performance
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...
UMI Performance 78-88 GM G-Body Modular Adjustable Transmission Crossmember - Red
$349.99
UMI3108-R
Instock
UMI Performance
Transform your GM G-body with UMI's state-of-the-art modular crossmember system, designed to deliver precision, performance, and versatility. Engineered with a laser-cut tab and slot...
UMI Performance 78-96 GM B-Body Boxed Extended Length Lower Control Arms w/Poly Bushings - Red
$369.99
UMI3622-R
Instock
UMI Performance
UMI’s extended length trailing arms optimize wheelbase to improve the appearance of the wheel in the wheel opening. Heavy boxed tubing and high quality...
UMI Performance 70-81 F-Body Leaf Spring Installation Kit
$108.22
UMI2627
Commerceinstruments Best Selling Products
Instock
UMI Performance
UMI's leaf spring installation kit works with UMI P/N 2620 leaf springs as well as other stock location leaf springs. The kit is a...
UMI Performance 78-88 GM G-Body Lowering Spring Front 2in Lowering
$173.73
UMI3051F
Commerceinstruments Best Selling Products
Instock
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI Performance 59-64 Chevy B-Body Rear Lower Control Arm Hardware Kit
$30.61
UMI3605
Instock
UMI Performance
Lower control arm hardware kit includes new hardware for installing lower rear control arms in the 58-64 Chevrolet B-Body vehicles. Kit includes 5/8” grade...
UMI Performance 78-87 GM G-Body AC/Heater Box Delete Panel - Black
$80.17
UMI3030-B
Instock
UMI Performance
This delete panel is designed to eliminate both the heater box and air conditioning unit from the engine bay of your vehicle. Removal of...
UMI Performance 78-88 GM G-Body Rear Frame Notching Kit Weld In
$108.28
UMI3061
Commerceinstruments Best Selling Products
Instock
UMI Performance
UMI’s P/N 3061 G-Body frame notch kit allows for narrowing the rear upper frame rails on the G-Body for installation of a wider tire....
UMI Performance 82-02 GM F-Body Factory Torque Arm Replacement Bushing
$35.29
UMI3004
Instock
UMI Performance
Replacement torque arm bushing for factory style mount on 1982-2002 GM F-Body.Installation Instructions
UMI Performance 78-02 GM Rear Control Arm Bolt Upgrade Kit
$30.61
UMI3001
Instock
UMI Performance
Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new...
UMI Performance 78-88 GM G-Body Upper & Lower A-Arm Mounting Hardware
$40.90
UMI3013
Instock
UMI Performance
Don't reuse old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes new high grade...
UMI Performance 70-81 Polyurethane Leaf Spring Shackle Kit
$117.57
UMI2625
Instock
UMI Performance
UMI's polyurethane shackle kit works with UMI P/N 2620 rear leaf springs as well as other stock location leaf springs. The kit is a...
