UMI Performance
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UMI Performance 64-77 GM A-Body Rear Control Arm Bolt Upgrade Kit - 4001
UMI Performance
$30.05Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardware for installing either upper or lower rear control...$30.05 -
UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings - 3000-B
UMI Performance
$60.14UMI’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings tend to dry rot, crack and harden...$60.14 -
UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings - 3000-R
UMI Performance
$60.14UMI’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings tend to dry rot, crack and harden...$60.14 -
UMI Performance 68-72 GM A-Body Control Arm Reinforcements/Frame Braces - 4028-B
UMI Performance
$170.47Trailing arm mount braces are designed to reinforce the upper and lower front control arm mounts on your classic A-Body. The more power your ride makes the better chance of bending or breaking the...$170.47 -
UMI Performance 68-72 GM A-Body LSX Motor Mounts - 4008-B
UMI Performance
$200.56UMI’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 SBC/BBC location with the ability to move the engine rear-ward ...$200.56 -
UMI Performance 68-72 GM A-Body LSX Motor Mounts - 4008-R
UMI Performance
$200.56UMI’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 SBC/BBC location with the ability to move the engine rear-ward ...$200.56 -
UMI Performance 68-72 GM A-Body Tubular Upper & Lower Control Arms - 401516-B
UMI Performance
$381.10Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of junk, bushing deflection and rusting weak...$381.10 -
UMI Performance 70-81 GM F-Body Front Subframe Repair Kit - 2662
UMI Performance
$55.1240+ years of moisture and abuse can leave your frame in bad shape, and unable to properly locate the body mounts. Our 8 piece kit is designed to weld-in and provide a sturdy surface and a properly...$55.12 -
UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering - 2647F
UMI Performance
$180.50UMI’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 stiffer than stock to provide increased performance with...$180.50 -
UMI Performance 70-81 GM F-Body Rear Leaf Spring Set 2in Lowering - 2620
UMI Performance
$461.34UMI’s rear leaf spring is a high perfomance solution to lowering the rear of your 1970-1981 Camaro or Firebird. These springs feature high quality US Steel, multi-leaf construction and lower the car...$461.34 -
UMI Performance 73-87 GM C10 Front Lowering Springs 2in drop - 6452F
UMI Performance
$160.44UMI’s 2″ front lowering spring kit features high quality construction and a medium firm 900 lb/in spring rating. UMI springs are suitable for daily driving, back road corner carving and even...$160.44 -
UMI Performance 78-02 GM Rear Control Arm Bolt Upgrade Kit - 3001
UMI Performance
$27.04Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardware for installing either upper or lower rear control...$27.04