what is the recommended rear gear fluid for a 03 f 250 2wd 7.3l. and is it the same for the front axle?

Most people I know switch to Reline or RP. I've never changed mine so....

SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B WSL-M2C192-A
Additive Friction Modifier C8AZ-19B546-A EST-M2C118-A

Need about 3 quarts of the 75-140 and two of the little bottles of mod.

so the super dutys are limited slip?

I'm thinking most are. I could be wrong on that, as I don't actually have a Superduty, just the drivetrain, lol.

ok cool, i will just change the fluid out with rp with the modifier in it. how about the transfer case on a 04 f350 crew 4wd? is it atf or is it special?

That is a question I don't know the answer to right off hand. Lemme do some checking... :)

thanks