Are there any coding indentification numbers on diff carriers? I pulled a D44 off a Rodeo. I know the Isuzu's use a larger ring and come stock with 4.10 or 4.30 ratios. I've been told that the 4.30 uses a 3.92 and down carrier. This is what I've been "told", but I'd like to be able to identify the carrier. I don't want to have to rely on what someone has said.

I asked a very similar question on ORC a bit over a year ago, and got this pic as an answer!

in the pic 3.72 is on the left, and 4.09 is on the right.

http://tellico.off-road.com/wwwthreads_uploads/1047422-44carrier_id.jpg

oh yeah there is also the dana part numbers to go by

If it is a dana/spicer case, look to see if it has the part number 706024 or 706025 on it. If it does, the 25 is the one you want.

mine had no numbers ( that I could find)

This may sound dumd, but can't you call the factory and get the info???