Pontiac 2008 Torrent Owner's Manual page 321

Carrier Assembly-Differential (Rear
Drive Module)
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant and when to change it. See
Scheduled Maintenance on page 6-4.
How to Check Lubricant
AWD Differential Case for 3.4L V6 Model
A. Fill Plug
B. Drain Plug
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