Collection: UMI Performance

Muscle Car Suspension
UMI Performance
UMI Performance makes chassis and suspension parts for GM muscle car and classic platforms — A-Body, B-Body, F-Body (Camaro and Firebird), G-Body, H-Body, X-Body, W-Body, C10 trucks and S10/S15 — plus the 1979-2014 Ford Mustang, the 2015-and-newer Ford F-150, the Pontiac G8, the fifth- and sixth-generation Camaro and the Cadillac CTS-V. Most arms, bars and brackets are offered in a red or a black powder-coat finish.
Control ArmsK-MembersSway Bars
What We Carry from UMI Performance
Upper and lower control arms, A-arms, trailing arms and torque arms — boxed, tubular and adjustable
Panhard bars, traction bars, tie rod adjusters and bump steer kits
Tubular K-members, transmission crossmembers and subframe connectors
Front and rear sway bars, sway bar brackets and end links
Lowering springs, coilover conversion brackets, shocks and spring kits
Engine mounts, differential bushings, ball joints and driveshaft safety loops
Confirm your vehicle's body platform, engine and transmission before ordering. Each listing names the UMI part number and finish, and the Fits These Vehicles list on the product page gives the exact years and models.
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Vendor:UMI Performance
UMI Performance 3660-B Rear Upper Control Arm Mount Black for 1959-1964 B-Body
✓ In Stock • Ships from manufacturerRegular price $ 79.99Regular price$ 87.99Sale price $ 79.99Sale -
Vendor:UMI Performance
UMI Performance 3018-B Rear Lower Control Arm Relocation Brackets Bolt-In Black
✓ In Stock • Ships from manufacturerRegular price $ 143.77Regular price$ 158.15Sale price $ 143.77Sale -
Vendor:UMI Performance
UMI Performance 1060-R Rear Control Arm Relocation Brackets Bolt-In Red
✓ In Stock • Ships from manufacturerRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 1060-B Rear Control Arm Relocation Brackets Bolt-In Black
✓ In Stock • Ships from manufacturerRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 1045-R Upper Control Arm Mount Red for 2005-2010 Ford Mustang
✓ In Stock • Ships from manufacturerRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 1045-B Upper Control Arm Mount Black for 2005-2010 Ford Mustang
✓ In Stock • Ships from manufacturerRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 3666 Chevrolet B-Body Rear Upper Mount Rear End Side
✓ In Stock • Ships from manufacturerRegular price $ 79.99Regular price$ 87.99Sale price $ 79.99Sale -
Vendor:UMI Performance
UMI Performance 2336 Front Upper A-Arm Mounts Adjustable Factory
✕ Out of StockRegular price $ 229.99Regular price$ 252.99Sale price $ 229.99Sold out -
Vendor:UMI Performance
UMI Performance 1058 Upper Control Arm Mount Stepped Spacers
✓ In Stock • Ships from manufacturerRegular price $ 13.51Regular price$ 14.87Sale price $ 13.51Sale -
Vendor:UMI Performance
UMI Performance 2045 Rear Coilover Brackets Bolt-In for 1982-2002 GM F-Body
✓ In Stock • Ships from manufacturerRegular price $ 199.99Regular price$ 219.99Sale price $ 199.99Sale -
Vendor:UMI Performance
UMI Performance 90001 3/4in-16 4140 M/F Hex Adjuster 4-1/2in Length
✓ In Stock • Ships from manufacturerRegular price $ 22.70Regular price$ 24.97Sale price $ 22.70Sale -
Vendor:UMI Performance
UMI Performance 12VB600B UMI Coilover Spring 2.5in x 12in x 600 lb/in
✓ In Stock • Ships from manufacturerRegular price $ 69.99Regular price$ 76.99Sale price $ 69.99Sale -
Vendor:UMI Performance
UMI Performance 10VB275B UMI Coilover Spring 2.5in x 10in x 275 lb/in
✓ In Stock • Ships from manufacturerRegular price $ 59.99Regular price$ 65.99Sale price $ 59.99Sale -
Vendor:UMI Performance
UMI Performance 10VB200B UMI Coilover Spring 2.5in x 10in x 0 lb/in
✓ In Stock • Ships from manufacturerRegular price $ 59.99Regular price$ 65.99Sale price $ 59.99Sale -
Vendor:UMI Performance
UMI Performance 8VB850B Viking Coilover Spring 2.5in x 8in x 850 lb/in
✓ In Stock • Ships from manufacturerRegular price $ 59.99Regular price$ 65.99Sale price $ 59.99Sale -
Vendor:UMI Performance
UMI Performance 2405-R Upper Spring Mounts for UMI K-member Red
✓ In Stock • Ships from manufacturerRegular price $ 189.99Regular price$ 208.99Sale price $ 189.99Sale