93-02 GM F-Body Tubular Front Lower A-Arms- Delrin/Roto-Joint

93-02 GM F-Body Tubular Front Lower A-Arms- Delrin/Roto-Joint


1993 – 2002 Chevrolet Camaro
1993 – 2002 Pontiac Firebird

UMI’s fabricated tubular a-arms provide a rock solid foundation for your 4th Gen’s front suspension. Our P/N 2308 a-arms are built to offer increased rigidity, smooth non-binding travel, a precise steering feel, and a 4 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 UMI Roto-Joint which mimics the action of a rod end without the noise and harshness. The in-house built Delrin bushing provides a smooth non-binding upgrade to the industry standard polyurethane bushing. The unique combination of precision and comfort from the Roto-Joint and from the Delrin makes for a great racing oriented a-arm with a few street tendencies. This is the ultimate hybrid arm for street/racing use. 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 2308 is available in brilliant red or black powdercoat and also with a chromoly option (P/N 2308CM – 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.


  • 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
  • UMI Roto-Joint for precise performance & upgraded handling – with quiet comfort
  • 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
Weight 30 lbs


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SKU: UMI-2308 Categories: , , , Brand: