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-   -   Changed rear diff fluid with 80w90. now what? (http://www.ramforumz.com/showthread.php?t=47121)

cnshough 01-25-2010 06:35 PM

Changed rear diff fluid with 80w90. now what?
 
Took my 05 4x4 to have the rear differential fluid changed to hopefully stop the infamous rear end shudder. It worked, but the lube place used a synthetic 80w90 gear oil. Am I gonna have a problem because they didn't use the 75w140 like the manual calls for or will It be ok for another 15k miles?

Toms Blue Ram 1500 01-25-2010 06:43 PM

What do you have a 1500 , 2500 , 3500 ?

RamTech 01-25-2010 06:52 PM

I'm guessing they didn't use synthetic either. If you have limited slip, did they put in an additive for it? If your truck is a 1500 then they put in the wrong lube and I wouldn't leave it in there because it's a significantly lighter oil.

cnshough 01-25-2010 07:23 PM

1500. Asked them when I called to get a price if they had anything with the limited slip additive. He said yes, the synthetic it takes has it in It. The description on the Invoice said synthetic 80w90.

Toms Blue Ram 1500 01-25-2010 07:33 PM

What motor do you have ? Checking something for ya .

RamTech 01-25-2010 08:24 PM

Never heard of any synthetic gear oil with additive in it already.


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