Products

UMI Performance 70-81 Polyurethane Leaf Spring Shackle Kit

-10%

UMI's polyurethane shackle kit works with UMI P/N 2620 rear leaf springs as well as...

UMI Performance 78-88 GM G-Body Front 1in 70-81 F-Body 2-1/2in Lowering Spring

-10%

A spring is a spring right? Wrong! When UMI chose to manufacture our own line...

UMI Performance Tie Rod Adjusters - 11/16in Thread

-10%

Heavy duty tie rod adjusters are designed to eliminate the factory clamp style design making...

USA Standard 8.2in Buick / Oldsmobile / Pontiac 3.55 Ratio Ring & Pinion Set

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets...

USA Standard Axle Shaft For 8.2in Buick / Oldsmobile & Pontiac / Bolt-In Axle

-11%

USA Standard Axle Shaft For 8.2in Buick / Oldsmobile & Pontiac / Bolt-In AxleThis Part...

USA Standard Bearing Kit For GM 12 Bolt Passenger Car

-4%

USA Standard Gear Bearing Installation Kits are perfect for shops and builders who have shims...

USA Standard Master Overhaul Kit For The 8.2in Buick / Olds / Pontiac Diff

-9%

USA Standard Gear Master Overhaul Kits give you all the high-quality installation parts you need...

USA Standard Master Overhaul Kit For The GM 12P Diff

-8%

USA Standard Gear Master Overhaul Kits give you all the high-quality installation parts you need...

USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.42 Ratio

-2%

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets...

USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.55 Ratio

-2%

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets...

USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.73 Ratio

-2%

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets...

USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio

-2%

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets...