The most common U joints are the 1310, 1330, 1350 and the 3R. If your drive shaft has a 1310 U joint and the yoke on the rear end you are using takes a 1330 U joint then you are going to have to modify the drive shaft or get an adapter U joint.
You may want the tires to fit the wheelwells. It's not a big deal to shorten the driveshaft.The picture is not related to this post.
I understand what you are saying---BUT---
If I am changing the entire rear end (leaf springs included) why can I just reposition the rear end so that
I do not have to mess with the drive shaft?