Rust Buster Front Frame Repair Kit For 1999-2006 GM Frames RB7312

RB7312L
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  • Fits 1999-2006 Chevrolet Silverado 1500/2500 (Non HD)
  • Fits 1999-2006 GMC Sierra 1500/2500 (Non HD)
  • Fits 2002-2006 Chevy Avalanche
  • Fits 2000-2006 Chevy Suburban
  • Fits 2000-2006 GMC Yukon XL
  • Fits 2002-2006 Cadillac Escalade EXT
  • Fits 2003-2006 Cadillac Escalade ESV
  • Fits Silverado/Sierra Single Cab, Extended Cab & Crew Cab
  • Made From Heavy-Duty 7 Gauge Steel
  • Part measures 21.90" in length
  • Caps the front frame section at the front cab mount 22.00" forward
  • Matching OE holes for a perfect fit
  • Has perforations for Cab Mount if not removing
  • Protect with Rust Buster Rust Converter Paint RB9917
  • Welding Required
  • Ships with an oil protective coating to prevent oxidation during transit
  • Backed by our Lifetime Warranty

If you're a proud owner of the venerable GMT800-950 series chassis like the Chevy Silverado, Chevy Avalanche, GMC Yukon XL, Chevy Suburban and Cadillac EST & ESV, you're already familiar with its perfect mix of versatile utility, powerful towing capabilities, and a ride quality that feels more like a luxurious SUV than a rugged truck. They even invented the term “Mid-Gate”.  These features, along with its robust engine options and a durable interior, ensure your GM SUV retains its value and remains highly sought after. However, the common issue of premature and excessive rust due to its boxed frame that traps water can tarnish this otherwise impeccable reputation. That's where Rust Buster Frameworks steps in. We're committed to ensuring your GM SUV overcomes this challenge, helping you maintain its structural integrity and keep it powering through the roads for years to come with our perfect fit Frame Repair Kits. 

By utilizing the latest in Scanner Solutions and CAD Software Rust Busters crack engineering team is able to capture your specific model truck's frame contours down to the smallest detail. We take a Modern Approach and tailors each frame section to fit your vehicle and application with the unique vision that puts Fitment, Installation Ease and OE compatibility to the top of our priority list. We strive to set ourselves apart from the competition by being better in every area the current market has to offer, with a combined 45 of experience under Rust Busters Engineering staff we are here to put an end to all your rust issues.  Because of this, we back all of our frame pieces with a Lifetime Warranty.


INSTALLATION INSTRUCTIONS

Downloadable PDF - RB7312 Installation Instructions.pdf 

Inventory Last Updated: Sep 23, 2025
California Residents: Prop 65 Warning

Customer Reviews

Based on 8 reviews
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K
Ken Wetzel
A solution to a rusted frame

I have a 2001 Chevy Silverado, extended cab. Living in northeast Ohio the winters are sometimes brutal with the use of salt to control snow and ice. Needless to say, after 24 years, the frame is extremely rusty. One day I went to jack up the truck on the driver side, and the jack went through the bottom of the frame.

The frame is rusted forward of the body mount. At this point in the frame, there are several compound angles and bends. The repair piece is engineered to fit all the angles and bends, and easily slipped over the existing frame.

The gauge of the metal had to be at least twice the thickness of the factory frame. The piece came with optional cut out areas making it simple to install. Because of the rust, I cannot weld the new piece, so I will be bolting it through the existing frame. The sides and top of the frame are not rusted out, only the bottom.

I would recommend Rust Buster products to anyone needing to get a few more miles out of their vehicle.

A
ArcAngel Mobile welding
2006 Silverado

I am impressed with how well the frame kit fit. I did have to modify it a little to made it work for the application but I would definitely purchase another one when the time came for another repair. Thank you for providing us with a great product

R
Rick Forrest
Definitely worth it!!! 05 GMC Sierra crew cab slt

You guys make a quality product and ships fast, I will eventually be buying the piece for the passenger side as well this section of frame was not an easy fix but this definitely made the repair easier and worry free knowing it's repaired with quality parts! You have gained a long time customer and I will definitely refer your products to others who need frame repairs! Thank you for helping keep my truck on the road!!!

J
Jenny
Saved the truck

The frame repair kit was easy to use and saved us thousands of dollars to repair the truck.

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Bruce Hammond
front frame repair kit pass side

These parts are NOT CHEAP. but you get what you pay for, they fit like a glove. The other option is you fab your own stuff, nerd around and weld it on. good quality parts.