Best Trailer Axle Spring Seats

LIBRA 3500lb Tandem Trailer Axle Suspension Kit Leaf Springs U-Bolt & Hanger Kit

1,750lbs capacity per each spring, for standard 3,500lbs trailer axle,Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, nylon bushings installed.
It will replace SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184 (different SKU# but same spring).
Include 3,500lbs axle U-bolt kit for 2-3/8" dia round trailer axles , Kit include: 4 x 5-1/2" long U bolts, U bolts dia. 1/2".
Include Complete tandem trailer axle hanger kit for 1-3/4" leaf springs, Kit include: 2 x EQ-E1 equalizers, 6 x 3" tall hangers, 8 x shackle straps, 14 x 9/16"-18 x 3" long shackle bolts and locknuts.
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

1,750lbs capacity per each spring, for standard 3,500lbs trailer axle,Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, nylon bushings installed.
It will replace SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184 (different SKU# but same spring).
Include 3,500lbs axle U-bolt kit for 2-3/8" dia round trailer axles , Kit include: 4 x 5-1/2" long U bolts, U bolts dia. 1/2".
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

1,750lbs capacity per each spring, for standard 3,500lbs trailer axle,Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, nylon bushings installed.
It will replace SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184 (different SKU# but same spring).
Include Complete single trailer axle hanger kit for 1-3/4" leaf springs, Kit include: 2 x 3" tall hangers, 2 x 2.1" tall hangers, 4 x shackle straps (eye to eye 3.09"), 6 x 9/16"-18 x 3" long shackle bolts and locknuts.
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

3,500lbs capacity per each spring, for standard 7,000lbs trailer axle.
Eye to Eye length: 25-1/4", Free open: 3", width of leaf: 1-3/4", 6 leaves, 9/16" bushing dia.
It will replace SW6 / LIB-601-DE / UNA223 / PR6 / 9150021 (different SKU# but same spring).
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

3,500lbs capacity per each spring , for standard 7,000lbs trailer axle.
Free length from center of eye to end of hook: 26-7/8", Free open: 3.19", width of leaf: 2", 5 leaves, 9/16" bushing dia.
It will replace 72-32 / 1203T3 / LIB-501-SH / UNA232 / 125023 / 9150000 (different SKU# but same spring).
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

3,000lbs capacity per each spring, for standard 5,200-6,000lbs trailer axle.
Eye to Eye length: 25-1/4", Free open: 3", width of leaf: 1-3/4", 5 leaves, 9/16" bushing dia.
It will replace SW5 / LIB-502-DE / UNA111 / PR5 / 9150018 / 93163 (different SKU# but same spring).
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

1,750lbs capacity per each spring, for standard 3,500lbs trailer axle.
Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, nylon bushings installed.
It will replace SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184 (different SKU# but same spring).
LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..

Replaces rubber equalizers for E-Z Flex heavy-duty rubber suspension system by Dexter Axle.
For 33" axle spacing and axles up to 6000lbs. capacity.
Retrofits to existing leaf spring axles that use 013-104 style equalizers.
26.00" Double eye springs - tandem axles.
Requires no welding, grinding, or cutting of the trailer frame or axle hangers.

Replaces rubber equalizers for E-Z Flex heavy-duty rubber suspension system by Dexter Axle.
For 33" axle spacing and axles up to 6000lbs. capacity.
Retrofits to existing leaf spring axles that use 013-104 style equalizers.
26.00" Double eye springs - tandem axles.
Requires no welding, grinding, or cutting of the trailer frame or axle hangers.

Axle sold separately. Purchase of a compatible Burley Ballz Axle is required for use..
Coil-spring suspension stabilizes the trailer and gear, reducing structural stress and creating a smoother ride on rough terrain..
Hitching system allows for quick and easy installation and removal from a wide range of bike types..
Height-adjustable kickstand holds trailer and bike upright for easy loading and unloading of cargo..

Replaces rubber equalizers for E-Z Flex heavy-duty rubber suspension system by Dexter Axle.
For 33" axle spacing and axles up to 6000lbs. capacity.
Retrofits to existing leaf spring axles that use 013-104 style equalizers.
26.00" Double eye springs - tandem axles.
Requires no welding, grinding, or cutting of the trailer frame or axle hangers.

Replaces rubber equalizers for E-Z Flex heavy-duty rubber suspension system by Dexter Axle.
For 33" axle spacing and axles up to 6000lbs. capacity.
Retrofits to existing leaf spring axles that use 013-104 style equalizers.
26.00" Double eye springs - tandem axles.
Requires no welding, grinding, or cutting of the trailer frame or axle hangers.