Merchant Automotive Transfer Case Pump Upgrade Kit - Magnetic Drain Plugs and Fluid | 1998 - 2007

Duramax Diesel Transfer Case Upgrade Kit

Note: This kit may not be compatible with some aftermarket aluminum rear transfer case halves due to inconsistent manufacturing tolerances. Verify fitment before installation.

This kit prevents and repairs pump rub failure on Duramax transfer cases. It includes a Merchant Automotive T-6061 aluminum CNC-machined pump housing, gasket, RTV silicone, threadlocker, and two magnetic drain plugs. The included performance transfer case fluid promotes better shifting, reduces wear, and enhances efficiency.

Benefits:

• Complete upgrade kit
• Prevents future failures
• Performance fluid and magnetic drain plugs included

What's Included:

• T-6061 Aluminum CNC-Machined Transfer Case Pump Housing
• Transfer Case Adapter Gasket
• RTV Silicone w/ Applicator Nozzle
• Blue Threadlocker
• Performance Transfer Case Fluid (2 Quarts)
• 2 Magnetic Drain Plugs

Performance Transfer Case Fluid:

• Enhances shifting and performance
• Reduces wear and driveline noise
• Works in GM, Ford, Chrysler, diesel, or gas transfer cases
• A cost-effective upgrade for Auto Track II systems

Magnetic Drain Plugs:

• Catch metal debris and protect vital components
• Easy to clean at service intervals

What is Pump Rub? Pump rub occurs in GM transfer cases (1998–2007) when the pump housing wears through the rear case, causing fluid leaks that go unnoticed until it’s too late. This kit prevents pump rub by replacing the factory housing with a stronger one and comes with a limited lifetime warranty.

FAQs:

• OEM anti-rattle clip: Discard the factory clip during installation.
• Additional parts needed: The kit is comprehensive for preventative installs. For repairs, additional parts may be needed depending on the damage.
• Grinding noise after install: Check if the rear output bearing snap ring is fully seated.
• Speed sensor correlation code: Also caused by the rear output bearing snap ring not being seated properly.