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The Best Leaf Spring U Bolts of 2023 – Reviewed and Top Rated

2,529 Reviews Scanned

Rank No. #1
osemar Trailer Axle U-Bolt Kit for Boat Trailer Mounting Axle Leaf Springs Zinc, Heavy Duty Square U-Bolt Boat Trailer U-Bolts with Nuts and Frame Plate for Automobiles Trailer, 2 1/8 "W x 6 5/16" L
  • Axle u bolts KIT is made of heavy-duty steel with a thickness of 1/2", which is more robust and durable
  • The surface of U-Bolt Kit is zinc, which is more suitable for marine trailers and motor boats in salt water or fresh water.
  • Fits a 2x3 Axle. this Product to fit around a 2 inch by 3 inch Boat Trailer Axle.
  • Trailer u bolts fully adjustable, according to your needs
  • Package Include: 2 zinc flat mounting plates,2 u bolt and All hardwares in picture.
Rank No. #2
Speedway Motors Leaf Spring U-Bolt for 3 Inch Axle Tube, Includes Nylock Nuts, Zinc-Plated Finish for Maximum Durability, 8 Inch Length, 6 Inch Thread Length, Set of 4
  • Great replacement for worn out stock bolts and feature a generous length to accommodate lowering blocks
  • Premium heavy-duty steel construction for consistent performance and reliability
  • 8" overall length, 6" thread length and 1/2"-20 thread pitch
  • Zinc-plated for rust and corrosion prevention
  • Includes nylock nuts for easy installation
Rank No. #3
2PCS Rear Leaf Spring U-Bolt Plate For 1995 1996 1997 1998-2002 Dodge Ram 2500 3500
  • Rear Leaf Spring U-Bolt Plate
  • For 1995-2002 Dodge Ram 2500 3500; For 1995-1999 Dodge Ram 1500;
  • Placement on Vehicle: Rear; Manufacturer Part Number: 52038458;
  • Type: Leaf Spring; Position: Rear;
  • Support one year warranty, we guarantees all products to be free from defects in materials and workmanship when properly installed and under normal usage to the original purchaser and for the original vehicle parts were installed on
SaleRank No. #4
M-Parts Trailer U Bolt Kit- U Bolt Kit for 3,500 lb Trailer Axle, 5.5” U-Bolts, 2-3/8" Round Axle, 1/2” Diameter - Trailer Axle U Bolts, Trailer U Bolts, Trailer Leaf Spring U Bolts, U Bolts 2 inch
  • INCULDED – Four 5-1/2” Long U-bolts, Two U-Bolt plates for 1-3/4’ Springs, U-Botls 2-3/8” width for Round Axle, 8 ½-20 Hex Nuts
  • SPECIFICATIONS - 3.5k 5-1/2” Long U-bolts, U-Bolt plates for 1-3/4 Springs’, U-Bolts 2-3/8” width for Round Axles, ½-20 Hex Nuts
  • TRAILER AXLES – U-Bolt Kit for 3,500 lb Trailer Axles
  • PART NUMBER – MATAPUBR-1
  • M-PARTSAUTO- M-Parts Auto specializes in trailer parts & accessories using the highest quality materials
Rank No. #5
U Bolts & Plate Kit for Boat Trailer Axle Leaf Springs Galvanized Zinc, 2 1/8"W x 4 3/4"L
  • Made from heavy duty 1/2" thick durable steel
  • Zinc coated to prevent rusting and suitable for marine trailers and motor boats in saltwater, fresh water, coastal conditions and utility/land trailers in icy conditions
  • For use on a 2x2 square axle, square boat trailer axle
  • Universal and fully adjustable to meet your trailers needs
  • Kit includes: (2) mounting plates, (4) square U-bolts, (8) hex nuts, (8) flat washers, (8) lock washers
SaleRank No. #6
ReadyLift Suspension RL F250 350 U-BOLT KIT-M16 ROUND - 67-2094UB
  • Pre-cut and E-coated U-bolts
  • Guaranteed against manufacturer defects in materials and workmanship for the life of your vehicle
  • Retains the OEM factory ride while lifting your vehicle up to 4 inches
Rank No. #7
Rough Country 9/16" Round Suspension U-Bolts 3.25 x 9.5 Universal 7623,Black
  • Rough Country 9/16" Round U-bolts 3.25 x 9.5 Universal 7623
  • Estimated Install Time: 2 - 3 hours
  • Includes: 9/16" Round U-bolts -
  • Hard suspension components: limited lifetime replacement. Leaf & coil springs: 5 year limited. Shocks & stabilizers: 3 year limited. Bushings, ball joints, etc: 1 year limited. Winches: 1 year electrical. 2 mechanical. Led lights: 3 year limited. Jeep wrangler jk armor: limited lifetime. Tonneau covers: limited lifetime. Bed mats: limited lifetime. Fender flares: 3 year limited. Nerf steps: limited lifetime. Soft tops: 3 year limited. Wheel well liners: limited lifetime
  • Backed by Rough Country's Limited Lifetime Replacement Warranty.
Rank No. #8
New Trailer U Bolt Kit, Trailer Leaf Spring U Bolts, for 5200-7000lbs 3" Round Axle, 7” Long U-Bolts, 1/2” Diameter, 3” Wide U Bolts-20080
  • Application: This trailer U bolt kit is compatible with 5200-7000lbs round axle which axle beam diameter is 3 inch.
  • Package Include: 4 x 7" long U bolts, U bolts diameter, 1/2", 8 x 1/2"-20 hex nuts, 2 x tie plates for 1-3/4" leaf springs.
  • High Quality Material: This trailer U bolt kit is made of high quality and durable steel, every part of this kit is designed as the original part, nuts and bolts are suitable with each other, better fit, no loose.
  • Easy installation: Don’t need special tool to install, directly replaces, removes the broken U bolts and nuts, installs the new kit. Only spend your several minutes. Believe me! It will be the best choice for you when your trailer U bolts is broken.
  • 100% Satisfaction Guarantee: If you have any questions about our trailer U bolt kit, please contact us at first time. We support refund within 30-Day guarantee, 12-Month warranty for quality-related issues.
SaleRank No. #9
Dorman Help! 35635 Spring U Bolt
  • The dimensions of the bolt are 9/16 X 8 - 1/8 X 2-5/8 Square
Rank No. #10
Rough Country Rear Leaf Spring U-Bolt Kit for 1987-1995 Jeep Wrangler YJ - 7621
  • Rough Country Rear Leaf Spring U-Bolt Kit 7621
  • Estimated Install Time: 2 - 3 hours
  • Includes: 1/2" Round U-bolts -
  • Backed by Rough Country's Limited Lifetime Replacement Warranty.
Rank No. #11
American Automotive 2005-2011 Dakota 2WD/ 4WD 3" Rear Lift U Bolts 11" Extra Long OEM Material
  • FITMENT: Dakota 2WD/ 4WD; 4" thread can be cut down to fit other applications
  • SPECIFICATIONS: 11 Inch Length, 3.25 Inch Width, 4 Inch Thread Length, 9/16 Inch Thread Pitch
  • CONTENTS: 4 certified carbon steel round leaf spring axle u-bolts with grade 8 hi-nuts, security spring washers and Installation Instructions
  • TECHNICAL NOTES: Retighten u-bolts after the first 500 miles; Minor settling from new or repaired springs can cause a reduction in clamp force
  • BENEFITS: American leaf spring axle u-bolts are designed for maximum u bolt clamp and embody extreme strength; These ubolts provide an even distribution of pressure to protect against premature spring failure and unwanted movement; Made of OEM factory material American u bolts maintain original vehicle handling characteristics and are guaranteed for life
Rank No. #12
Sturdy Built Single Axle Galvanized U Bolt Kit for mounting Boat Trailer Leaf Springs for 2x2 axle - 5 1/4" Long
  • All Hot-Dipped Galvanized Parts, Perfect for Fresh Water or Saltwater Boat Trailers, or Utility/Land Trailers in Icy or Coastal locations.
  • Complete Single Axle Kit: Includes All of the Galvanized Hardware and Parts Pictured. Enough U Bolts and Plates to mount a Single Axle to Your Trailer.
  • Fits a 2x2 Square Axle. The included U Bolts and Plates are designed to fit around a 2 inch by 2 inch Square Boat Trailer Axle.
  • Square U Bolt Size: 1/2 inch Diameter x 2 inch Inside Width x 5 1/4 inch Inside Length
Rank No. #13
Tuff Country 27854 U-Bolt
  • Part number: 27854
  • Package Weight: 12.0 pounds
  • Oem equivalent part number: 27854
  • Package Dimensions: 20.0 L x 3.0 H x 5.0 W (inches)
Rank No. #15
U Bolts & Plate Kit for Boat Trailer Axle Leaf Springs Galvanized Zinc, 2 1/8"W x 6 5/16"L
  • Made from heavy duty 1/2" thick durable steel
  • Zinc coated to prevent rusting and suitable for marine trailers and motor boats in saltwater, fresh water, coastal conditions and utility/land trailers in icy conditions
  • For use on a 2x3 square axle, square boat trailer axle
  • Universal and fully adjustable to meet your trailers needs
  • Kit includes: (2) mounting plates, (4) square U-bolts, (8) hex nuts, (8) flat washers, (8) lock washers
Rank No. #16
TORCH 1.5"-2" Rear Add A Leaf Lift Kit w/ 8.5" Square U Bolts for 1995-2022 Toyota Tacoma 2WD 4WD TRD SR5 - Models with 6 Lug Wheel Bolt Pattern ONLY
  • FITS: 1995.5-2022 Toyota Tacoma 2WD 4WD TRD SR5 (6 LUG MODELS ONLY - will NOT fit 5 lug models)
  • CONTENTS: 2PC Add a Leafs, Extended Alignment Pins, Isolator Pads, 4x Square U-Bolts (measurements are from inside the bend 8.5" long and 2.5" wide)
  • INSTALLATION: Bolt on kit. Comes with step by step instructions for the DIY backyard mechanic.
  • Ships Same/Next Business Day. 2-3 Day Delivery. Lifetime Warranty. Dedicated Customer Service. Call or message us with any questions!
  • NOTES: Leaf springs will provide about 1.5"-2" of lift depending on leaf pack condition. ***WILL NOT FIT 5 LUG MODELS***
Rank No. #17
RUNNINGAXLES U Bolt Kit – 7 Inch U Bolt for 7,000 lb Trailer Axle, 3" Round Axle, 7” Long U-Bolts, 1/2” Diameter- U Bolt Kit for 5,200-7000 lbs, Trailer Leaf Spring U Bolts
  • U-Bolt Size - 7" Long
  • Plate Size - 1-3/4"
  • Hex Nut & Washers - 1/2"
  • Capacity - 5,200 - 7,000LB
  • RunningAxles specializes in trailer parts & accessories using the highest quality materials
SaleRank No. #18
Set of 4 10" x 3" ID U-Bolts - Heat-Treated Zinc-Plated Steel - Fits 3" Diameter Axle Tubes - Accommodates Lowering Blocks - 1/2"-20 Thread Pitch - Includes Nyloc Nuts
  • High-Quality Construction: Made from heat-treated and zinc-plated steel, these U-bolts are built to last, ensuring long life and durability for your leaf spring axle.
  • Perfect Fit for 3" Diameter Axle Tubes: Designed specifically to work with rearend housings featuring 3" diameter axle tubes, these U-bolts provide a precise and secure fit.
  • Accommodates Lowering Blocks: With a generous length of 10" and a 6" thread length, these U-bolts allow for the installation of lowering blocks (sold separately), giving you the ability to fine-tune your ride height.
  • Secure and Reliable: All bolts are 1/2" diameter with 1/2"-20 threads, providing a strong and secure connection for your leaf spring axle assembly.
  • Complete Set: This U-bolt set includes four U-bolts and nyloc nuts, ensuring you have everything you need for a hassle-free installation.
Rank No. #19
Dynofit 2'' Rear Leveling Lift End Block Kit and Extra Long Square Leaf Spring Axle U Bolts for Chevy Silverado Sierra 2WD 2X2 4WD 4X4 2007-2021, Lift Block Kits Fit for Silverado Sierra 1500 07-19-21
  • 【Fitment】Fit for 2007-2021 Silverado 1500 2WD/4WD, 2007-2021 Sierra 1500 2WD/4WD.
  • 【Performance】CNC machined steel, great compression strength. Durable finish block with 63.5mm width to keep enough safety contact with leaf springs, 10.9-12.9 grade bolts with 9/16 thread pitch and thicker washer.
  • 【High Quality Block】Black Powder Coated, the surface of lift block is coated with black powder for stronger rust resistance, more beautiful and clean.
  • 【Contents】2 x rear lift blocks, 4 x extended u-bolts and instructions.
  • 【Brand Promise】2-year warranty with worry-free after-sales service. We also offer "30-DAYs REFUND"We hope that dynofit can make your shopping experience enjoyable. Feel free to contact us if you have any problems(missing parts, quality issues, transportation and more).
Rank No. #20
Upgraded Trailer Leaf Spring U Bolt Kit for 5200-7000lbs 3" Round Axle 7" Long 1/2" Dia Replace 20080
  • 【Fitment】This 3 inch U-Bolt Kit is used to mount 1 3/4 inch wide or 2 inch wide leaf springs. Works on 5200lbs-7200lbs trailer axle which has 3 inch axle beam dia.
  • 【Easy Installation】1 Kit works on ONE trailer axle. This U-Bolt Kit is used to fix the leaf spring of your vehicle. Directly replace the rusted or broken u-bolts, easy and quick mounting. Torque to 70-80 ft/lbs during installation.
  • 【High Quality】Grade 2. Made of heat-treated steel, sturdy, high strength and durable. U-Bolt: 1/2 inch x 3 inch x 7 1/4 inch. The threads are deep and clear, with even force and good tightening strength when used. Good rust and corrosion resistant.
  • 【What You Will Get】4x U-Bolts, 2x 5 Hole Mounting Plates, 8x Nuts,8x Locking Washers.
  • 【100% Satisfaction Guarantee】The johntruck Team aims to provide you the best products and services. We support 30 days returns and 12 months warranty. Please feel free to contact us if you have any question.

Last update on 2023-07-29 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Do you get stressed out thinking about shopping for a great Leaf Spring U Bolts? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Leaf Spring U Bolts, which is why we have assembled a comprehensive list of the greatest Leaf Spring U Bolts available in the current market. We’ve also come up with a list of questions that you probably have yourself.

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Potential sources can include buying guides for Leaf Spring U Bolts, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Leaf Spring U Bolts. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Leaf Spring U Bolts buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Leaf Spring U Bolts currently available on the market.

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  1. Brand Value: Every brand of Leaf Spring U Bolts has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Leaf Spring U Bolts?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Leaf Spring U Bolts.
  5. Customer Ratings: Number ratings grade Leaf Spring U Bolts objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Leaf Spring U Bolts.
  7. Product Quality: You don’t always get what you pay for with an Leaf Spring U Bolts, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Leaf Spring U Bolts is should be an indication of how long it will work out for you.

We always remember that maintaining Leaf Spring U Bolts information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Leaf Spring U Bolts is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

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