What Ujoint

You probably have a 7260 driveshaft, and a 7290 pinion yoke. There are 7260 yokes for 10 spline 2881489 pinions, And there are fine-spline 7260 yokes for the big pinions, but last time I checked they were over $150, and that's a long long time ago.
Oh Geewhiz already covered in previous post, sorry

You can get an combination U-joint....listed as 2-0527. It's not the same number I used ( a Precision U-joint), But I don't remember the Precision# either.