UMI Performance Adjustable Trailing Arms with Roto-Joints

UMI Performance Adjustable Trailing Arms with Roto-Joints are rear suspension trailing arms (also called rear lower control arms) built to improve handling, traction and rear-end stability. They replace factory arms with an on-car adjustable design, so you can fine-tune the setup without removing the arms from the vehicle.

Key Features:

• Roto-Joint technology: a pivot ball lined with a greaseable Delrin race. It gives rod-end-style articulation with a cushioned feel, and it helps reduce suspension bind.
• Bind-free movement: the Roto-Joint is designed to let the suspension articulate correctly and to absorb shock and road noise. This helps cut wheel hop and gives a quieter, smoother ride than many traditional rubber or polyurethane bushings.
• On-car adjustability: a UMI-built chromoly adjuster allows quick, secure adjustment, so you can optimize pinion angle and rear-end geometry.
• Strong construction: heavy-wall tubing and CNC laser-cut mounting brackets.
• Rebuildable design: the Roto-Joint is adjustable and 100% rebuildable. You can tighten the adjuster ring as the Delrin race wears, and you can replace the race if needed. A Roto-Joint spanner wrench is used for this maintenance.
• Made in the USA: manufactured, tested and raced in Philipsburg, Pennsylvania.

These arms suit street, road race, autocross and light drag race use. They are race proven and track tested, and they keep the comfort needed for a streetable setup. Choose the child option that matches your application.