Front Output Shaft and Input Shaft Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.

Fig 1: Exploded View Of Front Output Shaft And Input Shaft Components For Cleaning And Inspection

Courtesy of GENERAL MOTORS COMPANY

Inspect all components or sub-components and perform any repair procedure necessary to fix the damage. If the damage cannot be repaired, replace the component or sub-component as indicated.
Clean all components in cleaning solvent and air dry.
Inspect transfer case input shaft seal surface (1) for pitting, excessive wear, or damage.
Inspect transfer case input shaft bearing surface (2) for excessive wear, damage, or if the bearing has spun on the shaft.
Inspect the transfer case input shaft pilot bearing surface (3). If the bearing is removed, inspect for excessive wear, damage, or if the bearing has spun in the bore.
Inspect the transfer case input shaft splines (4). Witness marks at the location of the splines are normal.
Transfer Case Input Shaft Pilot Bearing Assembly (5) - Inspect for excessive wear or damage.
Replace the bearing if roughness, brinelling, or pitting is detected. Input Shaft Pilot Bearing Replacement
Transfer Case Front Output Shaft Front Bearing (6) - Inspect for excessive wear or damage.
Replace the bearing if roughness, brinelling, or pitting is detected. Front Output Shaft Front and Rear Bearing Replacement
Inspect the transfer case front output shaft seal surface (7) for pitting, excessive wear, or damage.
Inspect the transfer case front output shaft front bearing surface (8). If the bearing is removed, inspect for excessive wear, damage, or if the bearing has spun on the shaft.
Transfer case front output shaft driven sprocket engagement splines (9).
NOTE:
Witness marks at the location of the sprocket is normal.
Inspect the transfer case front output shaft rear bearing surface (10). If the bearing is removed, inspect for excessive wear, damage, or if the bearing has spun on the shaft.
Transfer Case Front Output Shaft Driven Sprocket Spacer (11) - Inspect for excessive wear or damage.
Replace the bearing if roughness, brinelling, or pitting is detected. Front Output Shaft Front and Rear Bearing Replacement
Transfer Case Front Output Shaft Rear Bearing (12) - Inspect for excessive wear or damage.
Replace the bearing if roughness, brinelling, or pitting is detected. Front Output Shaft Front and Rear Bearing Replacement