Dana 70 questions

[Kalums]

Ok guys I've done quite a bit of searching on here and the internet (which I feel like has become significantly dummer in the past few years) and I can't seem to find much about the Dana 70( 70-b specifically), I'm currently in a little bit of a quandary. As many of you know I've got a 1971 GMC K2500 that we all call "Frankie" because previous owners over the years have absolutely chopped up and Frankensteined the truck a significant amount. Well Frankie has a 1973 Dodge W300 Dana 70b under his flat bed. I just got finished rebuilding it this past winter/early spring. I did all the bearings and the inner seal when I rebuilt the brakes. I did not change out the bearing race(s) as the previous bearings looked pretty good and couldn't find any lips/ridges/scratches with my finger nail or a pick, didn't mess with the carrier/ring & pinion other than to check lash and play. I recently bought new tires (all 6, 235/85 R16 Michelin Cross-climate) and found that the inner rims were from a Gen 2 Dodge dually (8x6.5 otherwise known as 8x165.1) with a 4.77 center bore and the outer 2 rims are Ford Accuride from the 80s or 90s 8x6.5 with a 4.88 center bore, both sets "flat" faced and i don't know a way to center them correctly. You can imagine how I found out at 65mph and my empty backend bouncing around like a galloping horse *rolls eyes*... You guys can figure out the rest of the day and to topit off my seals are now leaking. Come to find out this axle is supposed to be lug-centric with "coined" faced rims. I can't find ANY with a 4.77 center bore. Long story not so short I need to make a few decisions that I'm willing to bet a few of you have made before so I put it to you guys 1)do I swap out the axle? Dana 60? GM Dana 70? GM 14 bolt? 2)Do I stay DRW or change to SRW? Are the Ford/GM/Dodge outer hubs interchangeable on a Dana 70-b? My internet skills are not nearly as good as some of you guys. I would really appreciate any help. I just got it back from the transmission shop and was hoping to put it to work earning it's keep... Because I am now officially "truck poor" *laughs*... No seriously. Again and as always thank you in advance you guys rock. ��