Rust Buster Rear Shock Mount For 2011-2018 GM HD Pickups RB7843

• Fits 2011-2018 Chevy Silverado 2500HD 
• Fits 2011-2018 Chevy Silverado 3500HD 
• Fits 2011-2018 GMC Sierra 2500HD 
• Fits 2011-2018 GMC Sierra 3500HD 
  
• Fits all Cab & Bed Configurations
  
• Replaces the OE Rear Shock Mount
  
• Passenger side mount is mounted on the Rear Fuel Tank Crossmember
• Driver side mount is mounted on the Rear Shock Tube Crossmember
• Made from Heavy-Duty 7 Gauge Steel
  
• Includes Class 10.9 Shock Bolt
• 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

The Chevy Silverado and GMC Sierra 2500HD and 3500HD are known for their durability and performance in demanding conditions. From heavy towing to commercial use, these trucks are built to handle tough jobs. Over time, exposure to road salt, moisture, and debris can lead to frame corrosion—especially in high-stress areas. Rust Buster frame repair kits are designed specifically for these models to reinforce and restore structural integrity. Each kit is made from heavy-gauge steel and engineered to match factory specs for a secure, accurate fit. Whether you're maintaining a fleet or preserving a personal vehicle, Rust Buster gives you a reliable solution to extend the life of your truck—without the need for a full frame replacement.

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: RB7843 Installation Instructions.pdf