2001-2007 Duramax Transfer Case Seal Driver Kit (10370)

Installing new input and output shaft seals in an NP136, NP146, NP246, NP261HD, NP263HD, NP261XHD, or NP263XHD transfer case just got smoother with this CNC-machined billet aluminum seal driver kit. These drivers boast a tough anodized black coating, complete with a laser-etched logo and part number for quick identification in your toolbox.

Part Number: 10370

• CNC-Machined Billet Aluminum
• High-Quality 
• Black Anodized Finish
• Laser-Etched Logo
• Individually Labeled w/ Part #

Includes:

• MA Front Output Seal Driver 
• MA Rear Output Seal Driver HD Cases Only 
• MA Rear Output Seal Driver 2001-2019 
• MA Input Seal Driver 
• MA Steel Driver Handle 

Parts Only

• Lifetime

What kind of hammer should I use with the seal driver?

For best results use a rubber or plastic hammer such as a dead-blow hammer. Do not use a metal hammer as the tool could be damaged.

How do I set the seal depth while using the seal driver?

The MA seal drivers are precision machined with positive stops to properly index and set the depth on your seals when properly used.

Can I replace the front output shaft seal with the transfer case installed in the vehicle?

Yes, after removing the front driveshaft the seal can be removed and replaced without removing the transfer case from the vehicle. Some people feel that it can be easier to remove the transfer case and replace the seals on a workbench though.

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