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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Transfer Case - Mp 3025 (NQH)) >> Repair Instructions - Off Vehicle >> Front Output Shaft and Input Shaft Cleaning and Inspection

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
GM5051820Courtesy of GENERAL MOTORS COMPANY
  1. 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.
  2. Clean all components in cleaning solvent and air dry.
  3. Transfer Case Input Shaft Pilot Bearing Assembly (1) - Replace the bearing if roughness, brinelling, or pitting is detected. - Input Shaft Pilot Bearing Replacement 
  4. Transfer Case High/Low Clutch Engagement Teeth (2) - Inspect for chipped teeth, excessively worn gear surfaces, and debris embedded in the root of the teeth.
  5. 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.
  6. Transfer Case Input Shaft Planetary Teeth (4) - Inspect for chipped teeth, excessively worn gear surfaces, and debris embedded in the root of the teeth.
  7. Transfer Case Input Shaft Bearing Surface (5) - Inspect for excessive wear, damage, or if the bearing has spun on the shaft.
  8. Transfer Case Input Shaft Seal Surface (6) - Inspect for pitting, excessive wear, or damage.
  9. Transfer Case Front Output Shaft Rear Bearing (7) - Replace the bearing if roughness, brinelling, or pitting is detected. - Front Output Shaft Front and Rear Bearing Replacement 
  10. Inspect the transfer case front output shaft driven sprocket spacer. Replace the plug if removed. Front Output Shaft Front and Rear Bearing Replacement 
  11. Transfer case front output shaft rear bearing surface (9). If the bearing is removed, inspect for excessive wear, damage, or if the bearing has spun on the shaft.
  12. Inspect the transfer case front output shaft driven sprocket engagement splines (10). Witness marks at the location of the sprocket is normal.
  13. Inspect the transfer case front output shaft front bearing surface (11). If the bearing is removed, inspect for excessive wear, damage, or if the bearing has spun on the shaft.
  14. Inspect the transfer case front output shaft seal surface (12). Witness marks at the location of the sprocket is normal.
  15. Inspect the transfer case front output shaft engagement splines (13). Inspect for pitting, excessive wear, or damage.
  16. Transfer Case Front Output Shaft Front Bearing (14) - Replace the bearing if roughness, brinelling, or pitting is detected. - Front Output Shaft Front and Rear Bearing Replacement