WEHRLI CUSTOM FAB WCF100135 2007.5-2010 LMM DURAMAX ALLISON 4X4 TRANSFER CASE BRACE

Product Description

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The WEHRLI CUSTOM FAB WCF100135 2007.5-2010 LMM DURAMAX ALLISON 4X4 TRANSFER CASE BRACE is a must-have upgrade for Duramax trucks running increased torque, towing heavy loads, or operating in demanding off-road conditions. The factory drivetrain layout allows the transfer case to experience additional stress during acceleration, towing, and four-wheel drive engagement. Over time, this stress can contribute to housing fatigue, mounting wear, or drivetrain misalignment.

The Wehrli Custom Fab transfer case brace reinforces the drivetrain by stabilizing the transfer case and reducing flex under load. Constructed from precision-cut heavy-duty steel and designed for a direct bolt-on installation, this brace helps distribute drivetrain load more evenly while protecting critical components in your Allison-equipped Duramax truck.

This upgrade is especially beneficial for trucks running performance tuning, upgraded turbochargers, or heavy towing setups where drivetrain torque loads are significantly higher than stock.

Key Benefits:

• Reinforces transfer case mounting area to reduce drivetrain stress
• Helps prevent transfer case housing fatigue or cracking
• Designed for Allison-equipped Duramax trucks
• Heavy-duty fabricated steel construction
• Improves drivetrain stability under load
• Ideal for towing, performance builds, and off-road applications
• Simple bolt-on installation with no drivetrain modification required
• Made in the USA

Fitment:

• 2007.5 Chevrolet Silverado 2500HD 6.6L Duramax LMM 4WD
• 2008 Chevrolet Silverado 2500HD 6.6L Duramax LMM 4WD
• 2009 Chevrolet Silverado 2500HD 6.6L Duramax LMM 4WD
• 2010 Chevrolet Silverado 2500HD 6.6L Duramax LMM 4WD
• 2007.5 Chevrolet Silverado 3500HD 6.6L Duramax LMM 4WD
• 2008 Chevrolet Silverado 3500HD 6.6L Duramax LMM 4WD
• 2009 Chevrolet Silverado 3500HD 6.6L Duramax LMM 4WD
• 2010 Chevrolet Silverado 3500HD 6.6L Duramax LMM 4WD
• 2007.5 GMC Sierra 2500HD 6.6L Duramax LMM 4WD
• 2008 GMC Sierra 2500HD 6.6L Duramax LMM 4WD
• 2009 GMC Sierra 2500HD 6.6L Duramax LMM 4WD
• 2010 GMC Sierra 2500HD 6.6L Duramax LMM 4WD
• 2007.5 GMC Sierra 3500HD 6.6L Duramax LMM 4WD
• 2008 GMC Sierra 3500HD 6.6L Duramax LMM 4WD
• 2009 GMC Sierra 3500HD 6.6L Duramax LMM 4WD
• 2010 GMC Sierra 3500HD 6.6L Duramax LMM 4WD

FAQ

What problem does a transfer case brace solve?

Under heavy load or high horsepower applications, the transfer case can flex or experience excessive stress at the mounting points. This brace reinforces the drivetrain structure to reduce flex and help protect the transfer case housing.

Is this brace necessary for stock trucks?

While stock trucks can benefit from additional drivetrain support, the brace is especially recommended for trucks used for towing, off-road driving, or performance builds with increased torque output.

Will this fit trucks with the Allison transmission?

Yes. This brace is specifically designed for Duramax trucks equipped with the Allison transmission and 4WD transfer case.

Is installation complicated?

No. The WCF100135 brace installs using factory mounting points and basic hand tools, making it a straightforward bolt-on upgrade.

Does this help with drivetrain longevity?

Yes. By stabilizing the transfer case and reducing drivetrain movement, the brace helps reduce stress on drivetrain components which can contribute to longer service life.