for the fords any years really as long as it is not a Duallie!!! they might come with auto hubs but no big deal. The newer trucks do come with dana 50's unless it is a duallie from what I have been told. So 1997 and older would be my choice for they do have 60's no matter what. of course the dana 50's are not crap. their ring gears are smaller. that's it. dana 60 outers. so i hope that helps!!
Chevy K30 and 3500 series have 1 ton rear axles. Ford F350's all have 1 ton gear. 75-79 F-250's have D60's in the rear. as for front, Ford f-350 seems to be your only choice. They have D60 ft ends with differential on Drivers side.
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