[UPNADM]

I have a couple of questions regarding the driveline on this rig and I hope someone can give me some advice...

My wheels are two piece nightmare's with an 8 bolt pattern. Is this interchangeable to a newer style wheel?

Second, the van has drum brakes up front on a straight axle front end with king pins. Is there anyway I could swap the drums for a disc set up using the same axle but adding a set of spindles?

And finally I think I would like to add a newer 3/4 or 1 ton rear axle, would this be hard swap aka, are the widths of the diff's the same from '62 to something newer?

I appreciate any insight, this is my first older than 73 - 87 truck I have ever worked on. This will be a learning experience.

Thanks in advance...