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Differential Clutch Pump Replacement

Fig 1: Identifying Differential Clutch Pump & Components
GM2018704Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
CAUTION:

It is very important to observe maximum cleanliness when working on the differential clutch. Dirt particles can seriously damage the function and service life of the differential clutch.

Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1 Differential Carrier Splash Guard Shield, If Installed
2 Differential Clutch Pump Bolts
CAUTION:

Refer to Fastener Caution .


Procedure 
Clean the threads and apply LOCTITE™. Refer to Adhesives, Fluids, Lubricants, and Sealers .
Tighten 
6 N.m (53 lb in)
3 Differential Clutch Pump O-rings (Qty:2)
4 Differential Clutch Pump
WARNING:

The hydraulic pressure in the differential clutch is very high. To prevent personal injury, wait for at least 10 minutes before removing any parts from the differential clutch.

Procedure

  1. Remove the electrical connector from the differential clutch pump.
  2. Check the fluid level of the differential clutch. Refer to Differential Clutch Oil Inspection .

TIP:  Approximately 80ml of oil will drain when the pump is removed.
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