GBGS Axle Spring Perch Seats for 3" OD Round Tube — 2-Pack, 8" Long 1/4" Steel Anti‑Wrap

GBGS 2 Pack Axle Spring Perch Seat is a weld-on, anti-wrap mounting bracket designed to fit 3" outside-diameter round axle tubes and accept 2-1/2" wide leaf springs.

This pair of spring perch seats provides a heavy-duty, low-profile attachment point for leaf springs on vehicles and trailers using 3" OD round axles. Constructed from 1/4" (5.9 mm) low carbon steel and finished plain, the mounts are 8" long to resist axle wrap and include a three-position hole pattern for up to 2" of wheelbase adjustment. They arrive ready for weld-on installation and are sized specifically to work with 2-1/2" spring leaves.

How do these perch seats reduce axle wrap under load?

The 8" length increases contact area along the axle tube, distributing torque and resisting rotation that causes axle wrap. The thick 1/4" material stiffens the mount so it keeps the spring seat aligned with the axle during acceleration or heavy torque events.

• 8" long body to spread bending forces and resist rotation
• 1/4" (5.9 mm) low carbon steel for structural rigidity
• Weld-on installation provides a permanent, solid connection

Can I adjust wheelbase and how does the 3-position hole system work?

The integrated three-position hole spacing gives you quick, repeatable wheelbase adjustments directly at the spring perch. Shifting the spring hanger to a different hole moves the axle center relative to the spring eye, allowing up to 2" of effective wheelbase change without moving the axle tube or spring pack.

• Three hole positions for incremental wheelbase tuning
• Adjustable up to 2" without major disassembly
• Works with standard 1/2" or metric fasteners depending on your hardware

What axle and spring sizes are these perches compatible with?

These seats are made specifically for 3" outside-diameter round axles and designed to accept 2-1/2" wide leaf springs. Confirm your axle O.D. and spring width before purchase to ensure a correct fit; the product is optimized for common trailer and light-truck applications using those dimensions.

• Fits 3" O.D. round axle tubes only
• Works with 2-1/2" wide spring leaves
• Weld-on design requires proper surface prep and welding capability

What should I know about material, finish, and installation?

Made from low carbon steel with a plain finish, these perch seats are ready to be welded in place and painted or coated after installation for corrosion protection. The straightforward design simplifies alignment and weld-up for experienced fabricators or professional shops.

• Low carbon steel construction — weldable and durable for structural use
• Plain finish; recommended to coat or paint after welding for rust protection
• Weld-on mounting — requires qualified welding and proper alignment tools

Who is this for? The GBGS 2 Pack Axle Spring Perch Seats suit mechanics, fabricators, and DIY restoration or custom-build enthusiasts working on trailers, light trucks, or project vehicles that use 3" OD round axles and 2-1/2" leaf springs. They are ideal when you need a robust, adjustable spring seat to limit axle wrap and allow modest wheelbase tuning. If you need a bolt-on solution, protective plating, or a different axle diameter, consider measuring your components first and selecting the matching product or consulting a fabricator for custom work.