Hi Denny. According to Borgeson's website single U-joints are only good up to a 35' angle. When we measured with an angle finder it looked as though our angle was going to be closer to 40'. Even though one half of the double will be fairly straight, it should give us the extra degrees we need.
Now, the angle finder tool we used was sort of crude and it wasn't the easiest spot to take a reading so our measurements might have been off.