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 4028-B Control Arm Reinforcements/Frame Braces Black
✓ In Stock • Only 4 leftRegular price $ 162.15Regular price$ 178.37Sale price $ 162.15Sale -
Vendor:UMI Performance
UMI Performance 4025-R Adjustable Upper Control Arms Polyurethane Bushings Red
✓ In Stock • Only 1 leftRegular price $ 249.99Regular price$ 274.99Sale price $ 249.99Sale -
Vendor:UMI Performance
UMI Performance 4024-B Rear Lower Control Arms Boxed Black for 1964-1972 A-Body
✓ In Stock • Only 1 leftRegular price $ 329.99Regular price$ 362.99Sale price $ 329.99Sale -
Vendor:UMI Performance
UMI Performance 4018-R Upper Control Arms Red for 1964-1967 GM A-Body
✓ In Stock • Only 1 leftRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 4018-B Upper Control Arms Black for 1964-1967 GM A-Body
✓ In Stock • Only 5 leftRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 4016-R Upper Control Arms Red for 1968-1972 GM A-Body
✓ In Stock • Only 2 leftRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 4016-B Upper Control Arms Black for 1968-1972 GM A-Body
✓ In Stock • Only 1 leftRegular price $ 152.96Regular price$ 168.26Sale price $ 152.96Sale -
Vendor:UMI Performance
UMI Performance 401516-B Upper/Lower Control Arms Black for 1968-1972 GM A-Body
✓ In Stock • Only 1 leftRegular price $ 369.99Regular price$ 406.99Sale price $ 369.99Sale -
Vendor:UMI Performance
UMI Performance 4015-R Tubular Lower Control Arms Red for 1964-1972 GM A-Body
✕ Out of StockRegular price $ 229.99Regular price$ 252.99Sale price $ 229.99Sold out -
Vendor:UMI Performance
UMI Performance 4015-B Tubular Lower Control Arms Black for 1964-1972 GM A-Body
✓ In Stock • Only 3 leftRegular price $ 229.99Regular price$ 252.99Sale price $ 229.99Sale -
Vendor:UMI Performance
UMI Performance 4008-R LSX Motor Mounts Red for 1968-1972 GM A-Body
✓ In Stock • Only 2 leftRegular price $ 189.99Regular price$ 208.99Sale price $ 189.99Sale -
Vendor:UMI Performance
UMI Performance 4008-B LSX Motor Mounts Black for 1968-1972 GM A-Body
✕ Out of StockRegular price $ 189.99Regular price$ 208.99Sale price $ 189.99Sold out -
Vendor:UMI Performance
UMI Performance 4004 Upper/Lower A-Arm Mounting Hardware for 1964-1972 A-Body
✕ Out of StockRegular price $ 33.72Regular price$ 37.10Sale price $ 33.72Sold out -
Vendor:UMI Performance
UMI Performance 4002 Rear Control Arm Bolt Upgrade Kit for 1964-1977 GM A-Body
✕ Out of StockRegular price $ 33.72Regular price$ 37.10Sale price $ 33.72Sold out -
Vendor:UMI Performance
UMI Performance 3665-B Solid 1in Rear Sway Bar Black for 1965-1970 B-Body
✓ In Stock • Ready to ShipRegular price $ 219.99Regular price$ 241.99Sale price $ 219.99Sale -
Vendor:UMI Performance
UMI Performance 3612-R Adjustable Extended Length Rear Lower Control Arms Red
✓ In Stock • Only 3 leftRegular price $ 349.99Regular price$ 384.99Sale price $ 349.99Sale