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Best Leaf Spring Center Bolts

Universal Leaf Spring Lowering Block Kit 4 Inch

  • 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.
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LIBRA 3500lb Single Trailer Axle Suspension Kit 1750lb Leaf Springs & Ubolt 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".
  • LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers..
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Trailer Double Eye Spring Suspension and Single Axle Hanger Kit for 2 3/8\ Tube - 3500 Pound Axle

  • (2) 4 Leaf 25 1/4" x 1 3/4" Trailer Double Eye Spring for 3500 lb Axles.
  • (6) 3" long x 9/16" diameter shackle bolts.
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Supreme Suspensions - Rear Lift Kit for 2000-2010 Chevrolet Silverado 1500HD 2500HD 3500HD 1½ - 2 Rear Lift Kit Add-A-Leafs 37.5 Long + Isolator Pads + Square Bend U-Bolts 2WD 4WD 8-Lug

  • 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....
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LCI Lippert 3,500LB Straight Idler Trailer Axle 72HF 58SC

  • 72" from Hubface to Hubface and 58" Spring Center to Spring Center..
  • Springs are 25 1/4" long and 1 3/4" wide.
  • 5 Lug with a 4 1/2" bolt pattern. 1/2 lug studs..
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LCI Lippert 3,500LB Straight Idler Trailer Axle 74HF 60SC

  • 74" from Hubface to Hubface and 60" Spring Center to Spring Center..
  • Springs are 25 1/4" long and 1 3/4" wide..
  • 5 Lug with a 4 1/2" bolt pattern. 1/2 lug studs..
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LIBRA 3500lb Single Trailer Axle Suspension Kit 1750lb Leaf Springs & 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 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..
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M-Parts 2 Pairs of 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)

  • 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".
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Trailer 6 Leaf Heavy Duty Slipper Spring Suspension and Tandem Axle Hanger Kit for 3 Tubes - 7000 Pound Axles

  • (4) 6 Leaf slipper Spring for 8000 lb Axles.
  • (4) U-bolt Tie Plates for 1-3/4" or 2" Spring.
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Trailer 6 Leaf Double Eye Spring Suspension and Tandem Axle Hanger Kit for 3' Tubes - 7000 Pound Axles

  • (4) 6 Leaf 25 1/4" x 1 3/4" Trailer Double Eye Spring for 7000 lb Axles.
  • (4) U-bolt Tie Plates for 1-3/4" or 2" Spring.
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Motorcycle Solo Seat Dual Shock Mounting Bracket WITH TWO 4' Mini Shock/Springs – For Custom Motorcycles - Fits aftermarket Solo Seats - Comes w/Weld-On Shock mounts for Frame - Harley Chopper Bobber

  • COMPLETE KIT WITH TWO 4″ MINI SEAT SPRINGS – Eliminate the sore ass syndrome while adding comfort and cool retro styling with this solo seat mini shock kit..
  • Dual Shock Mounting Bracket bolts to MOST aftermarket solo seats (please check dimensions before making a purchase). Bracket also includes two, un-coated, Weld-On shock mounts for the frame..
  • Shocks have an alloy body, adjustable spring pre-load and a black spring with a 300 pounds per inch spring rate. Designed specifically for solo seats on custom builds/applications..
  • Stainless steel mounting hardware included..
  • Bracket Dimensions: Length = 8″ Length = 7-1/4″ (center-to-center slotted mounting holes) Width = 1″ / Shock Dimensions: Length = 4-5/8″ Length = 4″ (center-to-center mounting holes) OD = 1-13/16″.
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Ultra-Tow 2000-Lb. Capacity Spring Trailer Axle with Adjustable Spring Mounts - 59 1/2in. Hubface, 43in.-49in. Spring Center, 64 1/2in.L, Straight

  • 62" from Hubface to Hubface 48" Spring Center to Spring Center..
  • 5 Lug with a 4 1/2" bolt pattern. 1/2 lug studs..
  • Springs are 25 1/4" long and 1 3/4" wide..
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Belltech 6203 Lowering Block Kit

  • Belltech Lowering Blocks provide an inexpensive, easy to install way to lower your Mini Truck by increasing the distance between the leaf spring and....
  • Lowering block kits are manufactured of high quality extruded aluminum and come complete with blocks, U-bolts, Nyloc nuts and washers.
  • The extruded aluminum process yields higher strength ratings when compared to cast or steel lowering blocks.
  • Lowering blocks are designed to lower the rear of your vehicle in 1,2 or 3 inch increments.
  • Also available with built in 2 degree taper for drive line angle correction.
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