UMI’s fabricated tubular a-arms provide a rock solid foundation for your 4th Gen’s front suspension. Our P/N 2307 a-arms are built to offer increased rigidity, smooth non-binding travel, a precise steering feel, and a 6 lb weight savings over stock. The DOM 1-1/4” diameter tubular sections are precision bent, CNC notched and TIG welded in a jig to form the solid base. The in-house built 4130 chromoly tube adapter provides a durable attachment point for the premium quality rod end. The in-house built Delrin bushing provides a smooth non-binding upgrade to the industry standard polyurethane bushing. The unique combination of precision from the rod end and comfort from the Delrin makes for a great racing oriented a-arm with a few street tendencies. The spring and shock attach to the arm via a tough 0.250” thick steel shock mount. The CNC machined ball joint cup is attached and a premium ball joint is installed. Our tubular lower a-arms can be installed on the stock K-member or any aftermarket K-member as well as the stock spindle - making this a true bolt-on product. P/N 2307 is available in brilliant red or black powdercoat and also with a chromoly option (P/N 2307CM – see below*). Manufactured with pride in Philipsburg, PA – USA.
Hardware kit P/N 2301 - Lower a-arm hardware kit includes four 14mm Grade 10.9 bolts, washers and locking nuts. Kit includes everything needed to mount your new UMI Performance a-arms to your vehicle.
Chromoly - Chromoly version uses 1.250" x 0.095" 4130 chromoly tubing, maintaining strength and reducing product weight by an additional 2 lbs, 10 lb total reduction. P/N 2306CM.
Features:
- 1.250” x 0.120” mild steel DOM tubing
- TIG Welded 4130 chromoly threaded tube adapters for thread durability
- CNC machined ball joint cup
- CNC Machined shock mount fabricated from 0.250” steel, precision bent
- Premium ball joints installed
- ¾” Teflon lined, high load capacity race rod ends
- Greaseable, UMI designed & manufactured Delrin bushings for supremely smooth suspension action
- Brilliant durable red or black powder coat
- Grade 8 shock mounting hardware included
- Uses balance of OEM hardware or use UMI P/N 2301
