GMC Sierra Transfer Case Brace – Wehrli – Illusion Blueberry – 2011–2019. For LML/L5P Duramax trucks with Allison, this brace adds proven driveline support under hard use.

Tested on high-horsepower builds and in off-roading, pulling, and drag racing, it links the Allison rear housing to the transfer case. By distributing load to the transmission center section, it helps limit tail-housing flex that can lead to cracks, leaks, and costly vibration-related repairs. Fabricated tubular steel with a single-stage Illusion Blueberry powder coat, it installs with basic tools using existing OEM fasteners—no transmission or transfer case removal.

Features

• 2011–2019 GM Duramax LML/L5P with Allison
• Connects transmission rear housing to transfer case
• Helps reduce driveline flex and vibration damage
• Installs with basic tools; uses OEM fasteners

Questions on fitment or install? Call Austin, TX at 512-982-9393 (TX) or Los Angeles, CA area at 562-981-6800 (CA). We offer installation and customization at our Austin, Texas and Los Angeles, California area locations.

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

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