Quick question

[Devil'S Ride]

Hey all,
Thought id run a couple quick questoins across you guys. I just picked myself up a 73 SWB 1/2 ton, 4x4, with an SM465/205. The truck is for my dad, an he doesnt want the stick, (he lives in the city) so we are going to trade trannies. I have a TH350/203. The two tranny/Tcase setups are 1/2" different in length, so I know to put my tranny into the new truck, all I gotta do is just swap them. The 465 is going into my truck, the 77 with a 427. I was wondering if you guys know if there is any particular bellhousing that i need in order to make this swap work. also, are there different t/o bearings, spline counts that I need to match up? I think I also need to get a bronze pilot bearing for the rear of the block as well correct?

One more thing, when I put the auto into the 73, should I switch radiators so that the auto continues to have the HD fluid cooler? and when I put the manual into mine, take the 73's radiator that goes with the manual, or does it matter?

Thanks for all the help -Devil