UMI Performance 2075-3-R Rear Weight Jack Coil Spring Lowering Kit

The UMI Performance 2075-3-R Rear Weight Jack Coil Spring Lowering Kit delivers adjustable ride height and enhanced handling for 3rd and 4th generation GM F-Body vehicles. This complete kit features custom-wound premium race quality coil springs manufactured from USA CrSi (chrome silicon) wire, paired with UMI's innovative spring perches equipped with smooth-acting Torrington bearings for effortless height adjustment.

Key Features:

• 200 lb/in spring rate optimized for corner carving, autocross, and road racing applications
• Torrington bearing load adjuster enables smooth, precise ride height changes with standard 3/4" socket through existing axle hole
• Includes upper polyurethane isolator to reduce road noise and vibration
• Heavy-duty jack screw and spring pad assembly with durable UMI red or gloss black powder coat finish
• Simple installation with normal hand tools—removes factory spring and inserts weight jack assembly
• Pairs perfectly with UMI 2042UDF shock package for complete suspension upgrade
• 100% designed, manufactured, and race-tested in Philipsburg, Pennsylvania USA

Fitment Note: Compatible with factory GM F-Body rear end housing and Strange Engineering brand rear housings only. Minor grinding required on left axle pad—detailed instructions included with kit.

This adjustable weight jack system provides the perfect solution for racers and performance enthusiasts who demand precise ride height control combined with superior handling characteristics. All premium components are manufactured in the USA to UMI's exacting race-proven standards.