GMC Sierra 2500HD Transfer Case Brace - Wehrli - Cat Yellow - 01-07. Built for Duramax LB7/LLY/LBZ with the Allison, this tubular brace strengthens the drivetrain and helps control flex under hard use.

Developed and tested for high‑horsepower builds, the Wehrli brace reduces driveline flex seen in off‑roading, pulling, and drag racing. By linking the transfer case to the transmission’s rear housing and sharing load with the stronger center section, it helps guard against cracked tail housings, leaks, and costly repairs. Finished in single‑stage Cat Yellow powder coat, it reuses OEM fasteners and installs with basic hand tools—no transmission or transfer case removal.

Features

• 2001–2007 Duramax LB7/LLY/LBZ, Allison
• Fabricated tubular steel construction
• Distributes load to reduce vibration‑related damage
• Basic hand‑tool install; no unit removal
• Uses OEM fasteners; Cat Yellow finish

Have questions or want this part installed? Call our Austin, TX or Los Angeles, CA area shops: 512-982-9393 (TX) or 562-981-6800 (CA). We provide installation and customization at both locations.

Purchasing 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