UMI Performance 3038-B Lower Control Arms with Roto-Joint Technology

The UMI Performance 3038-B tubular lower control arms are engineered for street performance enthusiasts seeking improved handling without sacrificing ride quality. These fully assembled control arms combine UMI's proprietary Roto-Joint technology with greaseable polyurethane bushings to deliver precision suspension geometry and a comfortable street-friendly ride.

Key Features:

• Constructed from 1.500" x 0.120" wall DOM mild steel tubing for exceptional strength
• Swivel Roto-Joint design provides 28 degrees of unrestricted movement for bind-free operation
• Delrin-lined spherical ball absorbs shock and road noise while maintaining low friction
• Energy Suspension greaseable polyurethane bushings on chassis end for vibration isolation
• Reinforced sway bar mounting holes with TIG-welded 0.120" steel sleeves
• Durable powder coat finish for long-lasting corrosion protection
• Fully TIG welded construction throughout
• Uses OEM hardware for direct bolt-on installation

Design Benefits:

The hybrid bushing configuration positions the softer polyurethane bushing at the chassis mount to filter road noise and vibration before it reaches the passenger compartment, while the Roto-Joint at the axle end allows proper suspension articulation during hard cornering, autocross, and road racing. This combination eliminates the binding common with traditional polyurethane bushings while maintaining excellent streetability. Both ends are greaseable for low-maintenance operation, making these control arms ideal for daily-driven performance vehicles that see occasional track use.