Amazon.com: The Trailer Parts Outlet 3500 lb Light Duty Single Trailer Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt kit (73" Hubface - 58" Spring Center (5'0 Frame), 5x4.5 Bolt
Amazon.com: LIBRA New Trailer Leaf Spring-6 Leaf Double Eye 3500lbs Capacity for 7000 Lbs Axle - 20029 … : Automotive
3,500 LB. LEAF SPRING ROUND TUBE AXLES
LIBRA 3500lb Tandem Trailer Axle Suspension Kit 1750lb Leaf Springs & Hanger Kit - Libra Trailer Parts