UMI Performance 2033-B Lower Control Arms with Roto-Joint Technology for 1982-2002 GM F-Body

The UMI Performance 2033-B tubular lower control arms are engineered specifically for 1982-2002 GM F-Body vehicles, combining streetability with race-inspired performance. These control arms utilize UMI's innovative Roto-Joint technology to eliminate suspension bind while maintaining a quiet, comfortable ride quality suitable for daily driving.

Roto-Joint Technology:

The Roto-Joint design features a 4140 chromoly hard chrome-plated spherical ball that rotates within a greaseable delrin race, providing 28 degrees of total unrestricted movement. This allows the suspension to articulate properly without the deflection associated with rubber or polyurethane bushings, resulting in improved traction, reduced wheel hop, and precision handling. The delrin race absorbs shock and road noise for smooth, quiet operation on both street and track.

Hybrid Bushing Configuration:

This control arm set features a hybrid design with Energy Suspension greaseable polyurethane bushings on the chassis end and UMI's swivel Roto-Joint on the rear axle end. The polyurethane bushing absorbs additional road noise and shock before it enters the passenger compartment, making this setup ideal for street performance enthusiasts who want improved handling without compromising daily drivability.

Key Features:

• Constructed from 1.500-inch x 0.120-inch DOM mild steel tubing for superior strength
• Fully TIG welded construction for maximum durability
• Brilliant and durable powder coat finish
• Uses OEM hardware for straightforward installation
• Shipped fully assembled and ready to install
• All bushing ends and Roto-Joints are greaseable for low maintenance
• Adjustable and 100% rebuildable Roto-Joints
• Includes spanner wrench for Roto-Joint adjustment and service

Serviceability:

The Roto-Joints are fully adjustable and rebuildable. The included spanner wrench allows you to tighten the adjusting ring as the delrin race wears over time, maintaining optimal performance. The Roto-Joint can also be completely disassembled for cleaning, inspection, and rebuilding, ensuring long-term durability and performance.

These control arms provide the perfect balance between performance and comfort, offering bind-free suspension movement for autocross and road racing while remaining completely street-friendly for daily driving.