[Motofalcon]

Random three questions Ive come across during my swap:
1 - i got a dana 60 from a SRW diesel 85 F-350 (36.5" spring pad width), and i think it has a 1310 u joint yoke at the pinion - is this correct? if so, should i switch it to a 1350 or 1410? (I've read some posts that say to use those instead) i am having a new driveshaft made anyways, so if I'm going to switch it, now would be the time. (if i should get one, where from?)

2 - Because my truck is a 98 it has metric wheel studs, but the 60 has american threads, so in order to not have two different sets of lugs, i want to switch the studs to make them match - it doesnt matter if their both american or metric, but i have the front apart now, so it would be easier. will studs from a late 90s ford (prior to unit bearings) fit and be the same metric as my chevy? or are there some american studs available to swap into my rear drum braked 14-bolt?

3 - i still can't figure it out - my truck is a 98 K3500 SRW with the 454 and 4L80E - what transfer case does it have? the only thing i could tell from looking under there is that it is a borg warner (im pretty sure). it is shifter on the floor, not pushbutton.

Thanks.