Ranger-Forums - The Ultimate Ford Ranger Resource

- Drivetrain Tech (https://www.ranger-forums.com/drivetrain-tech-37/)

- - Front & rear differential (https://www.ranger-forums.com/drivetrain-tech-37/front-rear-differential-153497/)

davidseese3@gmail.com

02-15-2018 09:56 PM

Front & rear differential

Do I need to add anything to my front or rear end differential other than the gear oil ?

Apexkeeper

02-15-2018 11:15 PM

If you have a limited slip diff you should add a friction modifier. Or just use Mobil 1 synthetic which already has friction modifiers in it.

Georgeandkira

09-04-2019 04:29 PM

People say service the gear oil @ 100,000 mi. Others quote a "chart" which says 150,000.

My '05 hasn't turned 50K in 19 years. What should I do?

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