Product details

Improve handling and fulfill your truck’s built-in performance potential by installing our P/N 383133-1 tubular upper and lower a-arms. UMI’s P/N 383133-1 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction and a host of premium features. The stock geometry lower a-arms feature tough tubular construction with greaseable polyurethane bushings for precise handling and smooth suspension motion. The ball joint mount is angled slightly from stock to permit usage with lowered vehicles and the design offers additional wheel clearance. The tubular upper a-arms are assembled with smooth operating, low deflection UMI designed and manufactured Delrin bushings as well as UMI-built billet CrMo cross shafts. They feature a relocated mounting pad to increase caster without excessive shims. Both upper and lower a-arms are jig built to maintain accuracy for a perfect fit every time and come preloaded with premium ball joints. Critical areas are TIG welded for superior strength and a clean look. UMI’s extensive testing on the street, drag strip and skid pad ensures a quality product able to with stand all types of conditions. The ultra tough red or black powder coat finish guarantees your performance parts stay beautiful on your street truck, drag truck, autocrosser or Pro-Touring machine. The P/N 383133-1 a-arm kit will work with factory springs, lowering springs and coil over kits such as the popular QA1 coil over set up. For the best handling and tire life from the UMI designed a-arms, included with each kit are recommended alignment specs along with detailed installation instructions. UMI Performance a-arm kit P/N 383133 is shipped fully assembled and ready for installation. For even more performance, check out kit #383133-2 which adds the benefit of a ½” taller ball joint in the upper a-arms for an improved camber curve and flatter contact patch. Hardware kit, Part # 3013 – Upper and lower a-arm hardware kit includes 12mm Grade 10.9 bolts, washers and nylock nuts. Kit includes everything needed to mount your new UMI Performance a-arm kit to your vehicle. Upper a-arms assembled with UMI manufactured greaseable & fluted CNC machined zero deflection Delrin bushings Fits factory spindle, drop spindles & works with factory springs, lowering springs & coil over kits Greaseable & fluted polyurethane bushings in lower a-arms for precision handling & a smooth ride Relocated upper ball joint mounting pad for improved caster & better steering feel Package includes recommended alignment specs & detailed installation instructions 303133 - 1978-1988 G-Body, S10 Tubular Front Upper & Lower A-Arms, Poly Designed & manufactured with pride in Philipsburg, PA – USA Polyurethane bump stops & new premium ball joints installed TIG welded DOM tubing for superior strength & clean looks Kit affords an 8lb weight savings over factory a-arm set 4140 CrMo cross shafts, CNC machined & zinc plated CNC machined ball joint holders & tubing radiuses Durable glossy red or black powder coat finish Simply bolt-on & go Features:

Manufacturer fitment & guides

Check 303133-B against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

Part-specific notes

• California Proposition 65: Y