Oil Leak in Rear Differential?

1999 DODGE DAKOTA

THOMPSONB06

MEMBER
1 POST

I have a 1999 Dodge Dakota that has a oil leak from the rear differential on the casing side (not the drive shaft side). Is this just a casing seal that needs to be replaced or is there probably something else going on?

Sep 22, 2015 at 7:14 AM

SQM

✓ASE Certified Mechanic
6,383 POSTS

Hello,

Typically when the differential leaks it is due to a bad seal/gasket.
Sealing that differential cover is fairly simple.
All you will have to do is first drain the fluid then take the bolt off to remove the cover.
Be sure to clean the mounting surface before applying sealant.

Then fill up the differential with appropriate fluid. It takes about 2.5 quarts of fluid.

https://www.2carpros.com/articles/how-a-differential-works
https://www.2carpros.com/articles/differential-service

I have attached the instructions for your reference.

Please let me know of any questions.
Thank you.

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Sep 10, 2021 at 2:38 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.