The front is a dana 60 , the rears change between SRW and DRW (and the 08 450 DRW had a huge dana something in the back, only year for that though).SRW trucks have either the 10.5 or 10.25. DRW's usually have the dana 80 in the back (thats what my truck has). Probably not as helpful as you hoped. And to throw another kink in the works the dana 60 and dana 50 fronts are externally identical, only way to tell the apart is to remove the cover and measure.
Last edited by Antonm; 01-05-2011 at 07:22 PM.