U Joint / Yoke question

Hi all,

I'm going to be putting an 8 3/4 in my Dart. The center chunk was out of a '67 Coronet, and it's going onto a Dart that had a 7 1/4 with a 273 and an auto trans. Anyone know which u joint will work for this set up? Obviously going to need to shorten the driveshaft as well, but curious if I can use the set up on the shaft now and make it work with the 8 3/4 from the Coronet. I assume the U joint for the 7 1/4 is much smaller than that used on an 8 3/4.

Many thanks.

Doug