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 
Part 
A: 
Scheduled  Maintenance  Services  on page 
6-4. 
How 
to Check  Lubricant 
If the level is below the bottom of the filler  plug hole, 
you’ll need to  add some lubricant. Add enough lubricant 
to raise the level 
to 
the bottom 
of 
the filler plug hole. 
A fluid loss could indicate a problem; check and have it 
repaired, 
if 
needed. 
What to Use 
Refer to the Maintenance Schedule to determine what 
kind 
of 
lubricant to use. See 
Part 
D: 
Recommended 
Fluids and Lubricants on page 
6-16. 
To  get  an  accurate  reading,  the vehicle should be  on a 
level  surface. 
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