UMI Performance Competition Front End Kit for 1978-88 G-body w- 650lb Springs, Street

Tremendous front grip and a host of features can be yours with UMI’s complete front end Grip Kit. 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 Teflon 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 auto-x) and a true 2-1/2” racing coilover. The upper stud mount fits in 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. Battle tested on the iconic UMI Green Machine. Kit is available in UMI red or black powder coat. 100% designed, manufactured and raced with pride in the USA.

Performance note: UMI recommends adding the P/N 3060-1 bump steer kit for optimal performance.

Features:

• Total of 10 degrees caster potential while maintaining spindle pin location.
• Upper ball joint moved rearward to add 5-6 degrees caster potential.
• Lower ball joint relocated forward to increase caster 4-5 degrees which improves steering feel and straight line stability.
• Viking double adjustable Crusader coilover shocks with pro-touring valving.
• Ride height adjustment using coilover shocks.
• Rod ends feature superior friction reduction for quick response
• Adjustable upper a-arm uses rod ends for easy alignment.
• UMI built Delrin bushings improve steering response and reduce deflection.
• Taller upper ball joints to improve camber gain, optimize roll center and improve traction during cornering.
• Upper and lower a-arms built from USA Made DOM steel tubing.
• Removable double shear mount to allow spring/shock replacement without removing spindle.
• Mount spacing suitable for Afco, Viking, Ridetech and many other aftermarket manufacturers shock/spring combos.
• Adjustable steering stop.
• Double shear swivel sway bar mounts and hardware work with UMI P/N 3035 and most other factory eyelet style sway bars.

Standard Spindle Vehicles

Kit Specifications:

• Kit # 3059-1
• P/N 3057-1  Coilover lower A-Arms, +3/4″ Lower ball joint, Derlin bushings, quick change shock mount.
• P/N 3056-2  Adjustable upper A-Arms, +1/2″ Upper  ball joint, rod ends.
• (2) Viking Crusader double adjustable shocks, AT pro-touring valving.
• (2) Front springs, 10″ 650lb rate for race use and good street manners.
• Thrust bearing kit for easy height adjustments.

• Kit # 3059-2
• P/N 3057-1  Coilover lower A-Arms, +3/4″ Lower ball joint, Derlin bushings, quick change shock mount.
• P/N 3056-2  Adjustable upper A-Arms, +1/2″ Upper  ball joint, rod ends.
• (2) Viking Crusader double adjustable shocks, AT pro-touring valving.
• (2) Front springs, 10″ 850lb rate for race use.
• Thrust bearing kit for easy height adjustments.

Drop Spindle Vehicles (S10 Xtreme included)

Kit Specifications:

• Kit # 3059-3
• P/N 3057  Coilover lower A-Arms, Standard Lower ball joint, Derlin bushings, quick change shock mount.
• P/N 3056-3  Adjustable upper A-Arms, +1″ Upper  ball joint, rod ends.
• (2) Viking Crusader double adjustable shocks, AT pro-touring valving.
• (2) Front springs, 10″ 650lb rate for race use and good street manners.
• Thrust bearing kit for easy height adjustments.

• Kit # 3059-4
• P/N 3057-1  Coilover lower A-Arms, Standard Lower ball joint, Derlin bushings, quick change shock mount.
• P/N 3056-3  Adjustable upper A-Arms, +1″ Upper  ball joint, rod ends.
• (2) Viking Crusader double adjustable shocks, AT pro-touring valving.
• (2) Front springs, 10″ 850lb rate for race use.
• Thrust bearing kit for easy height adjustments.