Reviews Leaf Spring Center Bolts

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..

This 4" lowering block kit includes just what you need to drop your car's leaf spring rear suspension.
Extruded aluminum lowering blocks are 2-1/2" wide and 5" long.
U-bolts fit 3" diameter axle housings and are 10" long to fit a variety of applications.
U bolts are a premium steel construction and are zinc plated for corrosion resistance.
Drops the ride height on vehicles with the axle mounted on top of the leaf springs.

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..

COMPATIBLE WITH 2000 - 2010 Chevrolet Silverado 1500HD, 2500HD and 3500HD (2WD 4WD). Only fits 8-Lug Models with single-pin leaf packs Only..
CONTENTS: 2x High-Strength Steel Add-A-Leafs, 4x Vibration Isolator Pads, 4x Square Bend U-Bolts, Installation Hardware, Installation Instructions and....
TECHNICAL NOTES: 1.5-2 inch rear suspension lift, depending on the condition of your leaf packs. Leaf Specifications: 2.5" Wide, 36.5" Top Length,....
INSTALLATION: Easy 'bolt-on' installation takes 1 to 2 hours. A Leaf Spring unloading/compressing tool is required for a safe installation. An....
BENEFITS: Supreme Suspensions Add-A-Leafs are constructed from heat-treated, tempered steel and can be added to your existing leaf spring packs to....

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..

SW4B Trailer Spring - 25-1/4" Double Eye 4-Leaf Spring 1-3/4" Wide for 3,500 lbs (3.5K) Trailers (1750 lb Capacity Per Spring).
Length from center of spring eye to center of spring eye: 25-1/4".