Transfer Case Gasket & Seal Kit FOR Chevy Silverado FOR GMC Sierra 2500HD 3500 NP261XHD NP263XHD 2001 2002 2003 2004 2005 2006 2007 TSK-261XHD

Ensure lasting protection and leak-free performance with this Transfer Case Gasket & Seal Kit Compatible with FOR Chevy Silverado / FOR GMC Sierra NP261XHD & NP263XHD (2001–2007). Perfect for restoring the integrity of your heavy-duty transfer case, this kit includes all the necessary seals and gaskets for a complete service.Fitment:FOR Chevrolet Silverado 2500HD & 3500 (2001–2007)FOR GMC Sierra 2500HD & 3500 (2001–2007)Transfer Case Type: NP261XHD / NP263XHDEngine Applications: 6.6L Duramax & 8.1L V8Typically paired with Allison automatic or ZF 6-speed transmissionKit Includes:All required transfer case sealsAdapter gasketFeatures:Constructed from premium-grade materials for durability and performance.Designed for aluminum, chain-driven NP261XHD and NP263XHD transfer cases only.Ideal for maintenance, repairs, or full rebuilds to prevent fluid leakage and extend service life.This FOR GM NP261XHD / NP263XHD Transfer Case Gasket & Seal Kit (TSK-261XHD) delivers factory-quality sealing performance to keep your drivetrain operating smoothly and efficiently.

• Compatibility – Designed for FOR Chevrolet Silverado 2500HD/3500 and FOR GMC Sierra 2500HD/3500 models (2001–2007) equipped with NP261XHD or NP263XHD transfer cases.
• Complete Seal Solution – Includes all required seals and the adapter gasket to properly reseal your aluminum, chain-driven transfer case.
• Built for Durability – Manufactured with high-quality materials to ensure superior oil resistance, temperature stability, and long service life.
• Reliable Fitment – Engineered to meet or exceed OEM specifications for precision sealing and leak prevention.
• Easy Installation – Direct-fit design ensures quick replacement with no modifications required; ideal for professional rebuilds or preventive maintenance.