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 2651-B Front Lower A-Arms Polyurethane Bushings Black
✕ Out of StockRegular price $ 729.99Regular price$ 802.99Sale price $ 729.99Sold out -
Vendor:UMI Performance
UMI Performance 2309-B Boxed Adjustable Lower A-Arms Rod Ends Black
✕ Out of StockRegular price $ 749.99Regular price$ 824.99Sale price $ 749.99Sold out -
Vendor:UMI Performance
UMI Performance 1035-B Boxed Lower Control Arms Black for 2005-2014 Ford Mustang
✕ Out of StockRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sold out -
Vendor:UMI Performance
UMI Performance 3715-B Tubular Rear Trailing Arms Black for 1997-2005 GM W-Body
✕ Out of StockRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sold out -
Vendor:UMI Performance
UMI Performance 2010 Lower Control Arm Relocation Brackets Weld-In
✓ In Stock • Ships from manufacturerRegular price $ 107.01Regular price$ 117.72Sale price $ 107.01Sale -
Vendor:UMI Performance
UMI Performance 12VB850B UMI Coilover Spring 2.5in x 12in x 850 lb/in
✕ Out of StockRegular price $ 79.44Regular price$ 87.39Sale price $ 79.44Sold out -
Vendor:UMI Performance
UMI Performance 101-10019 Premium Front Upper Ball Joint for 1978-1988 GM G-Body
✕ Out of StockRegular price $ 65.53Regular price$ 72.09Sale price $ 65.53Sold out -
Vendor:UMI Performance
UMI Performance 2521-B Toe Rods Roto-Joint Black for 2008-2009 Pontiac G8
✕ Out of StockRegular price $ 269.99Regular price$ 296.99Sale price $ 269.99Sold out -
Vendor:UMI Performance
UMI Performance 4001 Rear Control Arm Bolt Upgrade Kit for 1964-1977 A-Body
✓ In Stock • Only 1 leftRegular price $ 33.50Regular price$ 36.85Sale price $ 33.50Sale -
Vendor:UMI Performance
UMI Performance 2012-B Lower Control Arm Relocation Brackets Bolt-In Black
✓ In Stock • Only 2 leftRegular price $ 116.20Regular price$ 127.82Sale price $ 116.20Sale -
Vendor:UMI Performance
UMI Performance SS103050 Shock and Spring Kit 1in Lowering for 1968-1972 A-Body
✕ Out of StockRegular price $ 680.97Regular price$ 749.07Sale price $ 680.97Sold out -
Vendor:UMI Performance
UMI Performance 3013 Upper/Lower A-Arm Mounting Hardware for 1978-1988 GM G-Body
✕ Out of StockRegular price $ 40.85Regular price$ 44.94Sale price $ 40.85Sold out -
Vendor:UMI Performance
UMI Performance 3008 Super Lube Synthetic Grease 14oz Tube
✓ In Stock • Ready to ShipRegular price $ 36.48Regular price$ 40.13Sale price $ 36.48Sale -
Vendor:UMI Performance
UMI Performance 3051 Lowering Spring Kit 2in Lowering for 1978-1988 GM G-Body
✓ In Stock • Ready to ShipRegular price $ 319.99Regular price$ 351.99Sale price $ 319.99Sale