GBGS Leaf Spring Perch Seats for OD 3" Round Axles — 4 Pack, 7/32" Steel Weld-On, 1-7/8" Face

GBGS 4 Pack Leaf Spring Perch Seats are weld-on brackets that clamp to 3" outside-diameter round axles to position and support 1-7/8" wide leaf springs for trailers and off-road axles.

These leaf spring perch seats are engineered for straightforward, durable axle-to-spring mounting when you need reliable alignment and extra support. Made from low-carbon steel with a 7/32" (5.6 mm) thickness, each perch accepts a center 5/8" bolt and two 1/2" fasteners, fitting 1-3/4" or 2" leaf springs. The plain finished, weld-on design lets fabricators and DIYers secure spring packs to OD 3" round axles without custom machining.

How do these perches install on a 3" round axle?

Installation is welded directly to the axle tube: the perch wraps the OD 3" axle and is tack-welded in place, then fully welded for permanent attachment. Position the perch to align the spring center hole with the axle centerline before final welding to ensure correct ride height and tracking.

• Weld-on mount for OD 3" (3.00" diameter) round axles
• Use tack-weld to verify alignment, then complete welds for strength
• 5/8" center hole aligns spring center bolt; 1/2" holes accept shackles or hardware

What spring sizes and bolt hardware do these seats accommodate?

The perch face is 1-7/8" wide to center 1-3/4" or 2" leaf springs, holding the spring pack steady under load. The central 5/8" hole fits a common center bolt size used in many trailer and light-duty truck spring assemblies, while the two 1/2" holes provide additional hardware options for mounting or locating brackets.

• Face width: 1-7/8" for 1-3/4" or 2" springs
• 5/8" center bolt hole for standard spring bolts
• Two 1/2" bolt holes for shackles, pins, or locating bolts

What are the materials and durability expectations?

These perches are stamped from low-carbon steel at 7/32" (5.6 mm) thickness to balance weldability and strength. The plain finish is ready for welding and can be painted or coated after installation to improve corrosion resistance and match your axle finish.

• Material: low carbon steel, weldable and formable
• Thickness: 7/32" (5.6 mm) for consistent load support
• Plain finish—prepare and coat after welding for corrosion protection

Can these be used for off-road or heavy-duty trailer applications?

These perches are suited for many trailer and light off-road axle builds where a weld-on spring seat is required. They provide additional spring-to-axle support and positioning, but final suitability depends on vehicle load, axle rating, and welding quality—match perch use to your suspension design and safety standards.

• Designed for trailer and light off-road axle applications
• Provides secure spring positioning and added support
• Ensure professional welding and correct axle/spring load ratings

Who is this for: These GBGS 4-pack leaf spring perch seats are aimed at trailer builders, repair shops, off-road fabricators, and serious DIYers who need a dependable weld-on spring mounting solution for OD 3" round axles. If you maintain trailers, build custom suspension systems, or retrofit axles, these perches offer consistent hole sizes, compatible spring widths, and a robust steel thickness for reliable alignment and support. Always follow proper welding practices and confirm that these perches meet the load and safety requirements for your specific axle and spring setup.