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Rear Axle Fluid Check
Your rear axle may have an optional synthetic lubricant that allows the use of extended service intervals. A tag on the filler plug identifies the use of the synthetic lubricant.
Only use a lubricant that meets manufacturer specifications. Use of a non-approved rear axle lubricant may cause internal axle component damage. See
Capacities and Specifications - 6.7L Diesel.
Checking the Fluid Level
- Park your vehicle on level ground.
- Set the parking brake and shift into position neutral (N) or park (P). Turn the engine off.
- Clean any dirt from around the axle filler plug.
- Remove the filler plug and inspect the lubricant level. It should be at the bottom of the filler plug opening.
- Add lubricant, if necessary, through the filler plug opening.
- Clean and install the filler plug securely.
Changing the Fluid
Note:
Drain the rear axle while the lubricant is warm.
- Park your vehicle on level ground.
- Set the parking brake and shift into position neutral (N) or park (P). Turn the engine off.
- Clean any dirt from around the axle filler and drain plugs.
- Remove the filler and drain plugs. Drain the lubricant into a suitable container. Dispose of all used automotive fluids in a responsible manner following your local authorized standards.
- Clean and install the drain plug securely.
- Add lubricant through the filler plug opening.
- Clean and install the filler plug securely.
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