National 99176 Transfer Case Output Shaft Repair Sleeve - Front

Transfer Case Output Shaft Repair Sleeve

National 99176 is a stainless steel transfer case output shaft repair sleeve for restoring a worn sealing surface without replacing the shaft. It is sized for a 1.766 in shaft diameter and a 2.063 in flanged outside diameter, making it a direct repair solution for many front transfer case applications.

Key Features

• Stainless steel construction for corrosion resistance and durable sealing-surface repair
• Repair sleeve design for worn or grooved transfer case output shafts
• 1.766 in shaft size with 1.761-1.767 in shaft size range
• 2.063 in flanged outside diameter and 0.688 in overall width
• 0.563 in width on shaft and 0.813 in installation depth
• National 99176 cross-references Timken KWK99176 and Eastern Catalytic 99176

Detailed Description

This National transfer case output shaft repair sleeve is built to restore the sealing area on a damaged or worn shaft surface. By covering the wear path, it helps provide a smoother running surface for the seal and supports a proper fit in front transfer case repair work. National has focused on premium sealing solutions for more than 75 years, and that experience is reflected in the precision sizing of part number 99176.

Compatible With many front applications, including Fits 1999-2012 Chevrolet Silverado 1500, front; Fits 1999-2012 GMC Sierra 1500, front; and Fits 2008-2010 Saturn Vue, front. It also appears in fitment for Chevrolet Express, GMC Savana, Buick Rendezvous, Pontiac Torrent, Chevrolet Blazer, GMC Jimmy, and other listed vehicles across the 1984-2014 model years.

What It Helps Solve

• Grooved or worn transfer case output shaft sealing surfaces
• Oil leakage at the transfer case output shaft area
• Seal wear caused by shaft surface damage
• Repair needs where shaft replacement is not the preferred service path
• Front transfer case service on listed Chevrolet, GMC, Buick, Pontiac, Saturn, and other applications

Installation Notes and Tips

Verify shaft diameter before installation. This sleeve is specified for a 1.766 in shaft size, with a minimum of 1.761 in and a maximum of 1.767 in. Confirm the application notes for first- or second-design vehicles where listed, and match the front position exactly to the vehicle fitment data. Clean the shaft thoroughly before installing the sleeve so the sealing surface seats correctly.

Quality Assurance

National is a long-established sealing brand with more than 75 years of industry experience, and part number 99176 is engineered as a precision repair sleeve for transfer case service.