Can I use a slip yoke on the opposing end of this shaft?
I've never used this type of flat pinion yoke before. Well, I have on fords, but fords don't have this double u joint pivot. It's a heavy bastard, and I'm wondering if the slip yoke and tailshaft will be acting funny with it.

 

I dont see why not. Its kinda like 2 pc driveshafts. I say go for it!!!

 

The double cardan joint is also called constant velocity. Single cardan joints (one regular universal joint) cause the driveshaft to speed up and slow down through its rotation if there is an angle involved (as happens in a car). What are you using this shaft on? Typically the double cardan is used when a steep angle is involved, on stuff like four wheel drive trucks.

 

Well, I put a 90's impala dual exhaust crossmember in this delta. To fit a 9" tailshaft th400 in it.
It sets the trans tailshaft 1/2" higher and 3 inches back from the stock location.

I also raked up the rear with 1975 cadillac springs for that 70's look.
Although I have adjustable rear control arms, I bought this double cardan setup as well.
23 degrees max.

I think I'll paint it up like an old flopper.