GMC Sierra HD Transfer Case Brace - Wehrli - Bengal Grey - 11-19. Built for 2011–2019 GMC Sierra HD Duramax LML/L5P with the Allison transmission, it strengthens the transfer case and tail housing for demanding use.

Developed and tested for high‑horsepower Duramax builds, this brace links the transfer case to the transmission center section to curb driveline flex seen in off‑roading, pulling, and drag racing. By spreading load and reinforcing the weaker tail‑housing area, it helps reduce the chance of cracks, leaks, and vibration‑related damage. Fabricated tubular steel with Bengal Grey single‑stage powder coat. Installs with basic tools and OEM fasteners; no transmission or transfer case removal.

Features

• 2011–2019 GMC Sierra HD Duramax LML/L5P fitment
• Connects Allison rear housing to transfer case
• Helps reduce driveline flex and vibration damage
• Straightforward install; uses OEM fasteners; Bengal Grey finish

Questions? Call us. Installation and customization available at our Austin, TX and Los Angeles, CA area locations: TX 512-982-9393, CA 562-981-6800.

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

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