UMI Performance

Heavy duty 2.5″ drop spindles feature UMI satin black powder coat for ultimate durability. Spindles use GM C10 factory bearings and accept factory GM brake kits.This Part...

UMI’s adjustable upper a-arms feature race quality, adjustable rod ends. Camber and caster can be adjusted, often without the need for shims.This Part...

UMI’s adjustable upper a-arms feature race quality, adjustable rod ends. Camber and caster can be adjusted, often without the need for shims.This Part...

UMI’s Pro-Tour style rear sway bar dramatically improves the handling of the C10 squarebody. This bar features 3-position adjustability to fine tune handling balance. When paired with our 6440...

UMI’s Pro-Tour style rear sway bar dramatically improves the handling of the C10 squarebody. This bar features 3-position adjustability to fine tune handling balance. When paired with our 6440...

The UMI Performance P/N 6411 rear shock relocation kit provides a proven mounting solution for stock length shocks on flip kit lowered vehicles. Strong 3/16” thick construction and all hardware is...

Kit includes UMI CNC manufactured zinc plated upper shock stud and lower bolt kit. Front of truck requires two kits. Sold each.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

Kit includes UMI CNC manufactured zinc plated upper shock stud and lower bolt kit. Rear of truck requires two kits. Sold each.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

UMI’s street performance a-arm kit improves steering feel, enhances cornering and reduces wandering.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

UMI’s street performance a-arm kit improves steering feel, enhances cornering and reduces wandering.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

Street performance tubular lower A-Arm feature heavy duty cross shafts, Delrin bushings and a host of other features.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

Street performance tubular lower A-Arm feature heavy duty cross shafts, Delrin bushings and a host of other features.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

Street performance tubular upper a-arms add caster to improve stability and steering feel. Race Proven construction ensures crisp, precise handling.This Part...

Street performance tubular upper a-arms add caster to improve stability and steering feel. Race Proven construction ensures crisp, precise handling.This Part...

UMI manufactured upper shock stud replaces the original tacked-in stud found on the 1973-1987 GM C10 platform. Sold each.This Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...