GMC Duramax Transfer Case Brace by Wehrli, Custom Single Stage Powder Coating in Sparkle Granny Smith, for 2001–2007 LB7/LLY/LBZ with Allison. A compact, fabricated brace that adds targeted driveline support.

Developed and tested for high‑horsepower use, this tubular steel support links the Allison’s rear housing to the transfer case to spread load across the transmission center section. The added rigidity reduces driveline flex in off‑roading, pulling, and drag racing, and helps eliminate the chance of a cracked tail housing from vibrations caused by issues like a damaged u‑joint or driveshaft. Installs with basic hand tools, requires no transmission or transfer case removal, and reuses OEM fasteners.

Features

• 2001–2007 GM Duramax LB7/LLY/LBZ with Allison
• Fabricated tubular steel brace
• Connects transmission rear housing to transfer case
• Spreads load to cut flex and vibration; helps deter tail‑housing cracks
• Installs with basic tools; reuses OEM fasteners; Sparkle Granny Smith finish

Questions or ready to schedule? Call our Austin, TX or Los Angeles, CA area shops for installation and customization: Texas 512-982-9393, California 562-981-6800.

Ordering 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