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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Manual Transmission - ZF S6-650 - Service, Troubleshooting & Diagnosis) >> Repair Instructions >> Transmission Input Shaft Seal Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the rear propeller shaft. Refer to Propeller Shaft Replacement - One Piece or Propeller Shaft Replacement - Two Piece in Propeller Shaft.
  3. Remove the transmission. Refer to Transmission Replacement .
    IMPORTANT: The clutch actuator hose can remain connected to the clutch actuator. Disconnecting the hose from the clutch actuator will allow the hydraulic fluid to drain from the hydraulic system.
  4. Remove the clutch actuator cylinder bolts. Do not disconnect the hose from the actuator.
  5. Remove the clutch actuator cylinder.
    Fig 1: Removing Clutch Actuator Cylinder
    GM689675Courtesy of GENERAL MOTORS CORP.
  6. Remove the front oil seal using J 23907  (2) and J 44748  (1). See Special Tools .
    Fig 2: Removing Front Oil Seal
    GM696800Courtesy of GENERAL MOTORS CORP.
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