Magnum reseal questions?..

I used a Pontiac U-joint when I had a small yoke drive shaft and a large yoke on the 3rd member. I used to do that all the time. I still have one of the u-joints, but I forgot the part # LOL age....

I forget too, but when I worked in a Car Quest store in the 80s their part# was either 427 or 527. I can't remember which.