JOES Racing Products 15840 Tubular Upper Control Arm 8.50 Inch Bolt-In Ball Joint

The JOES Racing Products 15840 is a precision-engineered tubular upper control arm designed for circle track and dirt racing applications. This bearing-style A-arm measures 8.50 inches in length and features a bolt-in ball joint configuration with 0-degree angle for versatile suspension setups.

Premium Construction and Design:

• Manufactured from high-quality 0.095-inch DOM (Drawn Over Mandrel) steel tubing for superior strength and rigidity
• TIG welded in-house to exacting standards to reduce flex and maintain tight tolerances
• Dual-hole aluminum or steel cross shaft precision-machined to close tolerances, minimizing flex and binding
• Four-bearing design ensures smooth rotation and reduced friction even when parts get hot
• Black powder coat finish for maximum durability and corrosion resistance

Key Features:

• 8.50-inch arm length measured from center to center
• Standard bushing style with bolt-in ball joint plate
• 0-degree ball joint angle for straight mounting applications
• Bolt-on tube design allows for easy exchange and customization
• Compatible with JOES A-Arm slugs for quick caster adjustments in 1/16-inch increments
• Close tolerances ensure repeatable chassis setups lap after lap

JOES Racing A-arms are tested on dedicated control arm fixtures to produce some of the most rigid and reliable parts on the market. The bolt-together design saves time during setup changes and repairs, making this control arm an excellent choice for competitive racing programs.