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Jing 07-20-2011 06:43 AM

Front differential
I'm in the process of changing the fluid in the rear and front diff's. Was wondering, my manual recommends 75W90 for the front and 75W140 syn. for the rear.My question I need answered is it OK to use the same 75W140 in the front diff or will this do harm?

RedRam10 07-20-2011 09:39 AM

I'd go with the reccomendations. You don't want to risk damage. You can put synthetic in both differentials.

Another suggestion would be to post this in the Help section for the appropriate generation as more of our technical members watch those areas to assist the rest of us.


Hi and a warm Carolina welcome to the best RAM ForumZ on the web. How about dropping by the Newbie Checkin and introducng yourself then posting a few photos of your truck when you get it? I'm glad to see you popped back by to get an answer for another question after never getting an answer for your first question on the brake issue you first brought up. Let us know if you need help making more of this site so we can see more of you around here.:Hey:

Jing 07-20-2011 10:15 AM

Thanks, RedRam10 for the info much apprieciated.

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