DRT Fabrication products are built to order. In-stock items ship in 3 to 5 business days; made-to-order items have variable lead times. Contact us for current timing on your specific build.Tundra Cab Mount Relocation Kit – 2007–2021 Toyota Tundra The Strongest CMR Kit on the Market The DRT Fabrication Tundra Cab Mount Relocation (CMR) Kit is the ultimate solution for running 37” tires on your 2007–2021 Toyota Tundra. Factory cab mounts don’t provide enough clearance for larger tires, and even a traditional “cab mount chop” often leaves rubbing issues. Our relocation kit completely moves the cab mount behind the firewall, providing the clearance you need without compromise. Why Choose DRT’s CMR Kit? Unlike standard kits, ours is built for maximum strength and long-term reliability: 3/16” frame overlay plate disperses load and prevents stress cracks Fully boxed design built from laser-cut 3/16” & ¼” plate steel .188 DOM tube housing with Energy Suspension cab mount bushings included The only fully boxed cab mount relocation kit available, making it the strongest on the market Key Benefits Clears 37” tires without rubbing Provides a stronger, more reliable solution than standard “chop” methods Reinforced design prevents cracking and frame fatigue Built with premium U.S.-sourced materials and precision welding