GMC Sierra 2500HD Transfer Case Brace - Wehrli - Illusion Purple - 01-07. A purpose-built support that ties the Allison transmission to the transfer case to add strength for demanding Duramax setups.

Developed and tested for high-horsepower 2001–2007 Duramax LB7/LLY/LBZ applications, this brace helps reduce driveline flex under off-road use, pulling, and drag racing. By spreading load across the transmission center section, it helps limit vibration-induced stress from issues like a damaged u-joint or driveshaft and reinforces the weaker tail housing area to help ward off cracks and fluid leaks. Precision-fabricated tubular steel with a durable Illusion Purple single-stage powder coat. Installs with basic hand tools and retains factory hardware; no transmission or transfer case removal required.

Features

• Fabricated tubular steel support
• Spreads transfer case load across transmission center section
• Helps reduce driveline flex in extreme use
• Reinforces tail housing to help prevent cracks and leaks
• No removal of transmission or transfer case required
• Uses existing OEM fasteners
• Custom single-stage Illusion Purple powder coat

Questions or planning an install? Call our teams in Austin, Texas and the Los Angeles, California area for product guidance, installation, and customization services at 512-982-9393 (TX) or 562-981-6800 (CA).

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

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