I have a strange 12 bolt with a 1350 yoke and a stock drive shaft. Does anybody know the part number for the conversion u joint?

 

I have one laying out in the shed brand new in the box. They sent it with my 12 bolt even after I told them that I had an aftermarket shaft with 1350 joint. When I get outside I'll take a look for the part number.

 

Well I got my email back from strange today. The part number is U1645 just for future referance.