Rear axle for 1950 truck

[muthahucker]

I'm working on my frame and drivetrain and am starting to get to the part where I need to make a decision on my rear axle.
I currently have a 10 bolt rear axle out of a 1974 Camaro sitting in my shop with drum brakes (needs a rebuild), but I also have access to a 1999 blazer rear axle (unsure exactly what brake system is on it, believe its drums.. needs a rebuild) and have a friend that is offering a rear axle out of a 2002 explorer before it goes to the scrap yard (disc rear brakes, needs a rebuild).
What would be the best choice for a rear axle. I heard the explorer rear end is offset to one side?
Thanks