UMI Performance 2628-R Leaf Spring Traction Bar Kit Red

The UMI Performance 2628-R is a heavy-duty leaf spring traction bar kit designed to dramatically improve rear-end performance by enhancing forward traction and reducing or eliminating wheel hop. These traction bars bolt directly onto UMI or factory leaf springs with no modifications required — no cutting, welding, or back-halfing necessary. Race-proven and 100% Made in the USA, the 2628-R is finished in red powder coat and built to perform on the street and track alike.

A standout feature of this kit is the heavy-duty fabricated rear mount, which replaces the factory leaf spring plate — a component notorious for bending under hard acceleration. Unlike bolt-on designs, the traction bar mount is welded directly to the plate for superior strength and durability. Delrin bushings provide smooth, low-friction pivoting movement under load, allowing the bar to do its job without binding.

The adjustable bar length lets you dial in the right balance between ride quality and throttle response, making this kit equally at home on a road course, autocross course, or drag strip. For even greater performance gains, consider pairing the 2628-R with the UMI 2624 leaf spring front mount kit.

Key Features:

• Reduces or eliminates wheel hop for improved 60-foot times and overall traction
• Enhanced forward traction with reduced leaf spring wrap
• Delrin bushings for smooth, low-friction movement
• Heavy-duty fabricated mount replaces commonly bent factory leaf spring plate
• Traction bar mount welded directly to plate — not bolted on
• Adjustable bar length to fine-tune ride quality vs. throttle response
• Bolts to UMI or factory leaf springs — no modification required
• Ideal for road racing, autocross, and drag racing
• Red powder-coat finish
• Race-proven on the UMI '71 Camaro
• 100% Made in the USA

Pair with UMI part number 2624 leaf spring front mounts to further enhance traction and instant center location for maximum performance.