my pop's got an early 70's late 60's ford F250 (could be 350 but doubt it) 4x4. what axles came in them?

does anyone have a link to a site that has the common axles for ford 4x4 trucks around those years?? I'm gonna grab some pics tomorrow. but I'm just wondering what axles I might be looking at.

thanks

sb

found this (http://www.cj7jeep.com/info/axle/listing.html)

update, not that any cares :D but I found out its actually a 77' f250 with a drivers drop front 44 and a rear 60. anyone wanna trade my drivers drop with a passengers drop??