To make it easier to install a new input shaft seal in a NP246, NP261HD, NP263HD, NP261XHD, NP263XHD, MP1226 and MP1626 transfer case the team at Merchant Automotive developed this CNC-machined billet aluminum seal driver. The driver features a durable anodized black finish with a laser etched logo and part number to make them easy to identify when sitting in your tool box.

FAQ:

Does the transfer case need to be removed to change the front input seal?

Yes, it does. There is no way to access the front input seal without removing the transfer case from the vehicle.

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

Details:

• Engine Manufacturer: Duramax
• Liter: 6.6 Liter
• Engine Designation: LB7, LLY, LBZ
• Engine Years: 2001-2019
• Finish: Black Anodized

Applications:

• 2001-2019 Silverado/Sierra 2500HD/3500HD LB7/LLY/LBZ