GMC Duramax Transfer Case Brace - Wehrli - Gloss Black - 01-07. A robust, gloss-black support engineered for 2001–2007 LB7/LLY/LBZ Duramax trucks with the Allison transmission to add strength where it counts.

Developed and tested for high-horsepower use, this Wehrli Custom Fab brace ties the rear Allison transmission housing to the transfer case, spreading load into the stronger center section. It helps reduce driveline flex seen in off-road, pulling, and drag applications, and helps prevent cracked housings, fluid leaks, and costly repairs caused by vibration from issues like worn U-joints or driveshafts. Fabricated from tubular steel and finished in a single-stage gloss black powder coat, it installs with basic hand tools using existing OEM fasteners—no transmission or transfer case removal required.

Features

• Fits 2001–2007 GM Duramax LB7/LLY/LBZ with Allison
• Fabricated tubular steel construction
• Reinforces tail housing by sharing transfer case load
• Helps reduce driveline flex and vibration-related damage
• Uses existing OEM fasteners; bolt-on install
• Single-stage gloss black powder coat finish

Questions or planning an install? Call us and speak with our team. We offer installation and customization services at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX), 562-981-6800 (CA).

Ordering multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov