BUY NOW, PAY LATER. Starting at 0% APR 
UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear
$189.99
UMI4051R
Lowering Springs
Suspension
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 Body Mount Frame Repair Kit
$32.99
UMI4055
Brackets
Fabrication
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 Drive Shaft Safety Loop
$79.99
UMI4500-B
Driveshaft Loops
Drivetrain
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 64-72 GM A-Body Factory Height Springs Front
$169.99
UMI4049F
Lowering Springs
Suspension
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 Rear Coilover Kit Control Arm Relocation Bolt In
$259.99
UMI4057
Coilovers
Engine and Performance
Suspension
Suspension and Coilovers
UMI Performance
UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustments, while trailing arm adjustment enables fine tuning of instant center....
UMI Performance 64-72 GM A-Body Solid Front and Rear Sway Bar Kit
$419.99
UMI403534-B
Suspension
Sway Bars
UMI Performance
UMI Performance solid sway bars are designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. The 1.250"...
UMI Performance 64-72 GM A-Body Solid Front and Rear Sway Bar Kit
$419.99
UMI403534-R
Suspension
Sway Bars
UMI Performance
UMI Performance solid sway bars are designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. The 1.250"...
UMI Performance 64-72 GM A-Body Tubular Lower Control Arms
$229.99
UMI4015-B
Control Arms
Suspension
UMI Performance
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,...
UMI Performance 64-72 GM A-Body Tubular Lower Control Arms
$229.99
UMI4015-R
Control Arms
Suspension
UMI Performance
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,...
UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit - Black
$1,359.99
UMI403133-B
Control Arms
Suspension
UMI Performance
Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI...
UMI Performance 64-72 GM A-Body Upper & Lower A-Arm Mounting Hardware
$31.99
UMI4004
Engine Components
Hardware Kits - Other
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 64-77 A-Body 70-81 F-Body GM Front Sway Bar 1-1/4in Solid
$259.99
UMI4035-R
Suspension
Sway Bars
UMI Performance
UMI’s 1-¼" (32mm) solid front sway bar is the go-to bar for today’s modern handling muscle car. This bar reduces body roll and helps...
UMI Performance 64-77 GM A-Body Complete Rear Control Arm Bolt Upgrade Kit
$31.99
UMI4002
Engine Components
Hardware Kits - Other
UMI Performance
Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new one. Our kit includes all new...
UMI Performance 64-77 GM A-Body Rear Control Arm Bolt Upgrade Kit
$19.99
UMI4001
Engine Components
Hardware Kits - Other
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 65-67 GM A-Body Rear Suspension Kit - Black
$399.99
UMIABR401-B
Control Arms
Suspension
UMI Performance
UMI Performance 65-67 GM A-Body Rear Suspension Kit - BlackThis Part Fits: Year Make Model Submodel 1965-1967 Buick Skylark Base 1965-1967 Buick Special Base...
UMI Performance 65-67 GM A-Body Rear Suspension Kit - Black
$689.99
UMIABR413-B
Control Arms
Suspension
UMI Performance
This is a complete rear suspension kit and includes all items needed to rebuild the rear suspension on your 1964-1972 A-Body. This kit includes...
UMI Performance 65-70 Chevy B-Body Solid 1in Rear Sway Bar
$219.99
UMI3665-B
Suspension
Sway Bars
UMI Performance
This 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 65-87 GM Polyurethane Rear End Housing Replacement Bushings
$49.99
UMI3000-B
Differential Bushings
Drivetrain
UMI Performance
UMI’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings...
UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings
$49.99
UMI3000-R
Differential Bushings
Drivetrain
UMI Performance
UMI’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings...
UMI Performance 67-72 GM A-Body Factory Height Springs Rear
$189.99
UMI4049R
Lowering Springs
Suspension
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 68-72 GM A-Body Adjustable Upper Control Arms- Poly Bushings
$249.99
UMI4025-R
Control Arms
Suspension
UMI Performance
UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or...
UMI Performance 68-72 GM A-Body Control Arm Reinforcements/Frame Braces
$159.99
UMI4028-B
Brackets
Fabrication
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 68-72 GM A-Body Lowering Kit 1in Lowering
$665.99
UMISS103050
Lowering Springs
Suspension
UMI Performance
UMI Performance 68-72 GM A-Body Lowering Kit 1in LoweringThis Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...
UMI Performance 68-72 GM A-Body Lowering Kit 2in Lowering
$665.99
UMISS103051
Lowering Springs
Suspension
UMI Performance
UMI Performance 68-72 GM A-Body Lowering Kit 2in LoweringThis Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...
UMI Performance 68-72 GM A-Body Lowering Kit Factory Height
$665.99
UMISS103049
Lowering Springs
Suspension
UMI Performance
UMI Performance 68-72 GM A-Body Lowering Kit Factory HeightThis Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...
UMI Performance 68-72 GM A-Body LSX Motor Mounts
$189.99
UMI4008-B
Engine and Performance
Engine Components
Engine Mounts
UMI Performance
UMI’s P/N 4008 allows the installation of LS power into your 1968-1972 GM A-Body. UMI’s LS mounts place the LS engine in the factory...
UMI Performance 68-72 GM A-Body LSX Motor Mounts
$189.99
UMI4008-R
Engine and Performance
Engine Components
Engine Mounts
UMI Performance
UMI’s P/N 4008 allows the installation of LS power into your 1968-1972 GM A-Body. UMI’s LS mounts place the LS engine in the factory...
UMI Performance 68-72 GM A-Body Rear Shock Tower Brace Bolt In
$159.99
UMI4058-B
Strut Bars
Suspension
UMI Performance
This 100% jig built, bolt-in brace ties the rear upper shock mounts together to share the load and stiffen the chassis. Strong 1-1/4†tubing...
UMI Performance 68-72 GM A-Body Rear Shock Tower Brace Bolt In
$159.99
UMI4058-R
Strut Bars
Suspension
UMI Performance
This 100% jig built, bolt-in brace ties the rear upper shock mounts together to share the load and stiffen the chassis. Strong 1-1/4†tubing...
UMI Performance 68-72 GM A-Body Rear Suspension Kit - Black
$399.99
UMIABR801-B
Control Arms
Suspension
UMI Performance
UMI Performance 68-72 GM A-Body Rear Suspension Kit - BlackThis Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base...
UMI Performance 68-72 GM A-Body Rear Suspension Kit - Black
$689.99
UMIABR813-B
Control Arms
Suspension
UMI Performance
This is a complete rear suspension kit and includes all items needed to rebuild the rear suspension on your 1964-1972 A-Body. This kit includes...
UMI Performance 68-72 GM A-Body Rear Suspension Kit - Red
$399.99
UMIABR801-R
Control Arms
Suspension
UMI Performance
UMI Performance 68-72 GM A-Body Rear Suspension Kit - RedThis Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base...
UMI Performance 68-72 GM A-Body Tubular Non-Adjustable Upper Control Arms
$149.99
UMI4016-B
Control Arms
Suspension
UMI Performance
Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on...
UMI Performance 68-72 GM A-Body Tubular Non-Adjustable Upper Control Arms
$149.99
UMI4016-R
Control Arms
Suspension
UMI Performance
Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on...
UMI Performance 68-72 GM A-Body Tubular Upper & Lower Control Arms
$369.99
UMI401516-B
Control Arms
Suspension
UMI Performance
Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on...
UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering
$169.99
UMI2647F
Lowering Springs
Suspension
UMI Performance
UMI’s 2nd Gen F-Body lowering springs are wound from 5160 CrSi premium wire and feature a linear 600 lb/in rate. UMI’s front springs are...