Alison and transfer cases oil change help [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Alison and transfer cases oil change help


acarli3
03-16-2005, 08:56 PM
My first Post!

I have several questions. I have an 03 2500HD with Allison tranny. I picked up a filter at the dealer and Mobile ATF Synthetic tranny fluid that is Dextron-III compatible to change the tranny oil.

First, I see where the drain bolt is in the pan and the twist on filter, but where do I fill the oil back up at? I can't find anything under the hood or around the tranny pan and I didn't get an owners manual (bought used).

There appears to be a front and rear differential case. Do both of these need to be changed as well and do they use the same oil I already bought? I am told the rear is about 4 quarts. How much in the front transfer case or does it share oil from the Alison tranny pan?

Thanks all for your help.

T-Rex
03-16-2005, 09:31 PM
You were looking in the right thread for your answers go back to:

http://dieselplace.com/forum/showthread.php?t=1181&page=5&pp=10

T-Rex
03-16-2005, 09:56 PM
How rude of me not to welcome you.:o:

Welcome acarli3!! :beerchug:

Pour yourself the beverage of your choice, don the readin' glasses and get ready to be educated, entertained, and enlightened.:cool: