UMI Performance · New
UMI Performance 93-02 GM F-Body Front A-Arm Kit Non-Adjustable Street
MPN 230511-B · Store SKU umi230511-B
Supplier stock checked 11/7/2026, 6:56:37 AM UTC. Adding a part does not reserve it.
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Product details
UMI’s fabricated tubular a-arms provide a rock solid foundation for your 4th Gen’s front suspension. Our a-arm kit is built to offer increased rigidity, smooth travel, a precise steering feel, and an 8lb weight savings over stock. The DOM 1-1/4” diameter tubular sections are precision bent, CNC notched and welded in a jig to form the solid base. The in-house built 4130 CrMo tube adapter on the lower a-arm provides a durable attachment point for the precision rod-end while the other side features a smooth, quiet bind free polyurethane bushing. The lower a-arms feature UMI’s new bind free bushing end that uses a two piece heavy duty sleeve that allows the a-arm to pivot freely while the upper a-arms use street friendly greasebale polyurethane bushings. The unique combination of precision and comfort makes for a great street oriented a-arm kit with racing tendencies. The spring and shock attach to the lower arm via a tough 1/4” thick steel shock mount. The CNC machined lower ball joint cup and CNC laser cut upper pad feature premium ball joints installed. UMI’s tubular lower a-arms can be installed on the factory k-member or any aftermarket k-member as well as the stock spindle - making this a true bolt-on product. Manufactured with pride in Philipsburg, PA – USA CrMo - CrMo version uses 1-1/4” 4130 CrMo tubing, maintaining strength and reducing product weight by an additional 2lbs giving a total weight reduction of 10lbs. P/N 230511CM. Hardware kit P/N 2303 - A-arm hardware kit includes Grade 10.9 bolts, washers and Ny-lock nuts. Kit includes everything needed to mount your new UMI a-arms to the vehicle. TIG Welded 4130 CrMo threaded tube adapters for thread durability 230511 - 1993-2002 GM F-Body Front A-Arm Kit, Non-Adjustable, Street Uses balance of OEM hardware or use new UMI hardware kit ¾” Teflon lined, high load capacity race rod ends Heavy duty CNC laser cut ¼” thick shock mount Premium upper and lower ball joints installed High grade shock mounting hardware included 1-1/4” USA mild steel DOM tubing CNC machined lower ball joint cup Greaseable polyurethane bushings Durable red or black powder coat Made in Philipsburg, PA – USA Features:
Manufacturer fitment & guides
Check 230511-B against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
