1952-59 Ford u-joint conversion

Hello,
I am running in to a problem jeff b is trying to help me and i wanted to see if you guys could lend a hand i installed a 302 with aod out of a 84 thunderbird i am having a hard time finding the correct conversion u joint for the stock rearend what did you guys use please help thanks part # would be great

 

If there is a shop that makes driveshafts, talk to him.

 

This is the Part# NEAPCO 2-0291 for the conversion u-joint. Jeff got it for me great guy tons of info. Thanks again Jeff