what yr n model one piece drive shaft can i fit on my 65 gmc

[joedoh]

Powerdrive the driveshaft shop here won't even make a custom one as large as an s10 longbed 1pc, which is about as long as a 65 swb driveshaft. They want to make a two piece over a certain length, for the reasons stated.

My 65 is a swb so I bought an s10 long bed driveshaft, it is made of aluminum and is twice the diameter of the steel two piece s10 driveshaft. My truck is on an s10 swb frame that I moved the axle back to center the rear wheels, in case you wondered how I knew so much about s10 driveshafts. It correlates to what is being said above though