where is the oil fill hole on the rear diff of a 04 1/2 4x4 9.25? I put a locker in yesterday and need to fill it but see no hole. All i see is a sensor of some type plugged in the top of the diff. Does that need to be removed and put the oil in there?, if so, does anyone how to take that out w/o breaking it?

Another thing, the dodge part counter guy said the rear diff take 2 quarts. Is that right? It didn't seem like two quarts when I drained it. Thanks.

 

well i figured it out. I called the dodge dealer. I found the rubber plug right in front of my face. They painted right over the thing and i didn't even see it.

they call for 4.5 pints. Thats 2 1/4 quarts? 1 pint = 1/2 quart? 2 pints in a quart?

 

With the difference of mass of the new rear gears, i would fill the pumpkin up (with the truck on a level surface) until it starts to come out the hole. If i remember correct my 02 took almost 3 quarts with stock anti-spin.