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UMI Performance Competition Front End Kits 3059-4-B
Part Number: UPI-3059-4-B
UMI Performance Competition Front End Kits
Front End Kit, Competition, 1978-88 GM G-Body, 1982-2003 S10/S15, Black Control Arms, Coilovers, 850 lbs. Springs, Race, Kit
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Estimated Ship Date: May 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
3059-4-B
Part Type:
Product Line:
Summit Racing Part Number:
UPI-3059-4-B
Crossmember Included:
No
Welding Required:
No
Front Spindles Included:
No
Upper Control Arms Included:
Yes
Lower Control Arms Included:
Yes
Control Arm Style:
Tubular
Control Arm Material:
Steel
Control Arm Color:
Black
Upper Ball Joints Included:
Yes
Lower Ball Joints Included:
Yes
Rack and Pinion Included:
No
Shocks Included:
Yes
Shock Type:
Double adjustable coilover
Coilover Springs Included:
Yes
Coilover Spring Rate (lbs/in):
850 lbs./in.
Spring Finish:
Gray/Silver
Disc Brake Kit Included:
No
Front Rotor Included:
No
Front Caliper Included:
No
Brake Pads Included:
No
Sway Bar Included:
No
Center Link Included:
No
King Pins Included:
No
King Pin Bearings Included:
No
Pitman Arm Included:
No
Idler Arm Included:
No
Tie Rod Sleeves Included:
No
Inner Tie Rod Ends Included:
No
Outer Tie Rod Ends Included:
No
Quantity:
Sold as a kit.
Notes:
For use with drop spindles. Upper control arms are fully adjustable. Upper ball joint is moved rearward to add 5-6 degrees caster potential. Lower ball joint is relocated forward to increase caster 4-5 degrees which improves steering feel and straight line stability.
UMI Performance Competition Front End Kits
Tremendous front grip and a host of features can be yours with UMI Performance Competition front-end kits. The included A-arm kit enables 10 degrees caster while maintaining standard track width and wheelbase. Lower A-arms are assembled with tall lower ball joints to optimize roll center, camber gain, and center of gravity. Lower A-arms feature Delrin bushings for smooth travel and bind-free performance.
The new lower A-arm works in conjunction with the included adjustable upper arm—which features minimum shim adjustability, Pro Forged ball joints, and super-smooth PTFE lined rod ends. The front sway bar attaches using UMI's swivel-style end link design and double shear mounting system. The included Viking Crusader coilover shocks mount to the lower A-arm in double shear quick-change brackets. The lower shock mount is removable to allow spring and shock changes at the track.
UMI's kit features Viking Crusader shocks with AT pro-touring valving (high rebound tie-down for road race and autocross) and a true 2.5 in. racing coilover. The upper stud mount fits in the factory location, while the lower is optimized to fit UMI's 3057-1 coilover lower A-arm. Some grinding is required for installation in the upper frame spring bucket. Other spring rates and valve codes are available. The Competition kits have been battle-tested on the iconic UMI Green Machine. Kits are available in red or black powdercoat; and are 100 percent designed, manufactured, and raced with pride in the USA.
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