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Your cart is empty.Upgrade your trailer suspension with the Southwest Wheel Heavy Duty 3,500 lbs. Single Trailer Axle Suspension Kit, featuring 100% USA-MADE COMPONENTS for unmatched quality and durability. This premium kit includes EMCO 2,400 lbs. USA-Made Double Eye Leaf Springs, a USA-Made Hanger Kit, and a USA-Made 2-3/8" U-Bolt Kit, ensuring superior performance, longevity, and a smoother towing experience. Designed to fit Dexter Axles, this kit is built for heavy-duty hauling, providing better stability, reduced friction, and long-lasting performance. Perfect for utility trailers, boat trailers, cargo trailers, and RVs, this USA-Made suspension kit is designed to withstand harsh road conditions while delivering a smooth and controlled ride. U-Bolts Torque (ft. lbs.) minimum 45 maximum 60. Spring Eye Bolts Torque (ft. lbs.) minimum 110 maximum 114.