U-Bolt Eliminator Perch Kit 3.25" – 3.5" Axle Tube

Superior bolt-through design eliminates U-bolt failures.

This perch kit is built for spring-over-axle setups where failure isn’t an option. Instead of relying on U-bolts that can loosen or stretch, it uses grade 8 bolts threaded directly into 1/2" plate wings for maximum clamping force. The result is a stronger, more reliable setup that won’t back off under extreme off-road use.

Compatible with 3.25" to 3.5" axle tubes and 2.5" wide leaf springs, this kit is engineered for serious off-road builds that demand durability.

Key Features

• Part Number: R2170
• Fitment: 3.25"–3.5" axle tubes, spring-over applications
• Material: 1/2" plate wings, 3/8" thick leaf spring top plates
• Design: Bolt-through system with threaded wings — no U-bolts
• Dimensions: Fits 2.5" wide leaf springs

What’s Included

• (2) Spring perches with 1/2" plate wings
• (2) Heavy-duty 3/8" thick leaf spring top plates
• (8) Grade 8 bolts (4" x 5/8") with washers and nuts

Notes

• Bolts can be cut to length for perfect fitment (test fit before final install)
• Torque to 90 ft-lbs with thread locker