Product Details

Description

The Tuff Country 57851 Rear U-Bolt Kit is a corrosion-resistant, four-piece solution built to upgrade your Toyota 4WD’s rear suspension when running 3" rear blocks. Designed for lifted setups, it delivers a secure, reliable anchor for your axle and blocks.

  • Includes: (4) U-bolts with nuts and washers for a complete install
  • Finish: Zinc-plated finish to resist corrosion in harsh undercarriage environments
  • Designed for lifted vehicles: Optimized for 3" rear block applications on Toyota 4WD trucks
  • Bolt Diameter: 9/16"
  • Inside Diameter: 3-1/4"
  • Length: 10-3/8"
  • Bend Type: Square bend for secure clamping and even load distribution

Whether you’re restoring a worn-out factory set or upgrading to a more robust mounting solution for off-road adventures, this kit provides a solid, long-lasting connection between your rear axle, blocks, and springs. The zinc plating guards against rust as you tackle trails, snow, or salted roads—keeping your setup dependable over time. Ideal for enthusiasts who value a straightforward, install-ready solution that aligns with factory specs for a confident, future-proof fit.


Year Range Make Model Drivetrain Fitment Note
1986–1995 Toyota Truck 4WD with 3" Rear Axle

Specifications:


Single or Multi-Box Packaging: Single Box
Weight: 8.0 lb


FAQs

Please read our FAQs page to find out more.

Will this part fit my vehicle?

Fitment varies by year, make, model, drivetrain, and lift height. Always use the vehicle fitment selector or refer to the fitment notes on the product page before purchasing. If you’re unsure, our team can help confirm compatibility.

Are Tuff Country products street legal?

Most Tuff Country products are designed for on-road and off-road use, but local laws and regulations vary by state and country. It is the customer’s responsibility to ensure compliance with local vehicle regulations after installation.

Is professional installation required?

Professional installation is recommended but not required. Many products can be installed by experienced DIYers with proper tools. However, improper installation can affect ride quality, safety, and warranty coverage.

Will this affect my ride quality?

Tuff Country products are engineered to balance ride comfort, performance, and durability. Ride quality can change depending on lift height, vehicle setup, tire size, and other suspension components.

Are Tuff Country products covered by a warranty?

Yes. Tuff Country products are backed by a manufacturer warranty that covers defects in materials and workmanship. Warranty terms vary by product type and do not cover damage caused by misuse, improper installation, or normal wear.

Can I run larger tires with this product?

Many Tuff Country lift kits and suspension components allow for larger tire sizes, but maximum tire clearance depends on wheel offset, tire width, and vehicle configuration. Refer to the product details or contact support for guidance.

What is the return policy?

Unused, uninstalled products may be eligible for return within the stated return window. Items must be in new condition and returned in original packaging. Shipping costs and restocking fees may apply.

Who can I contact if I have questions?

Our customer support team is available to help with fitment questions, installation guidance, and order support. Reach out before purchasing if you want to ensure you’re selecting the right part for your build.

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Selling Suspension Systems for 35+ Years

Tuff Country EZ-Ride Suspension was incorporated over 35 years ago, realizing the desperate need for quality suspension products in the after market world.

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