FAG SS3022 Transfer Case Input Shaft Seal - Rear

Transfer Case Input Shaft Seal for GM Trucks

The FAG SS3022 transfer case input shaft seal is built for applications that need a precise sealing fit at the transfer case. It uses a nitrile sealing material with a metal and spring seal design to help keep contaminants out and retain lubricant at the seal interface.

Fits 1968-1980 Chevrolet and GMC transfer case applications, including Chevrolet K10, K20, K30, K5 Blazer, K10 Suburban, K20 Suburban, GMC C2500, K2500, K2500 Suburban, K3500, and GMC Jimmy where the listed transfer case notes apply. This FAG SS3022 seal is also referenced under OE-style global number 413 3022 100.

Key Features

• Transfer case input shaft seal for sealing the input shaft area
• Nitrile sealing material for oil resistance in drivetrain service
• Metal and spring seal construction for stable sealing contact
• Bore diameter: 2.623 in. / 66.624 mm
• Seal outside diameter: 2.627 in. / 66.726 mm
• Seal width: 2 in. / 7.95 mm
• Fits select Chevrolet and GMC 4x4 transfer case applications from 1968-1980

Detailed Description

FAG SS3022 is a transfer case input shaft seal designed around the dimensional requirements of specific GM 4x4 driveline applications. The seal uses nitrile sealing material and a metal spring design to maintain contact at the shaft surface while helping block dirt, dust, and moisture from entering the transfer case. Its listed dimensions and application notes make it a direct-reference choice for service on Chevrolet K10, K20, K30, K5 Blazer, and GMC C-series and K-series trucks with the specified New Process and Rockwell transfer cases.

This part cross-references Gates 19760 for the same application.

What It Helps Fix

• Transfer case fluid seepage at the input shaft
• Contamination entering the transfer case through a worn seal
• Grease or lubricant loss around the sealing surface
• Noise or driveline wear related to low transfer case fluid
• Service issues on older Chevrolet and GMC 4x4 transfer case assemblies

Installation Notes and Tips

Verify transfer case type, shaft dimensions, and seal orientation before installation. Clean the bore and shaft sealing surface thoroughly, and inspect for grooves, corrosion, or wear that could affect sealing performance. Match the seal to the listed application notes for Chevrolet and GMC models, including New Process 203/205 and Rockwell Std. T221 references where specified.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards. The SS3022 is built for demanding wheel-end and drivetrain sealing requirements, with material and dimensional control suited to the listed GM transfer case applications.