How do you take the rear yoke off?

Yep, that yoke is done! If you didn't lose the driveshaft this time, you probably will the next time it breaks. I've replaced a lot of seals by marking the nut, and marking the end of the pinion in the same spot. By the book? Nope, but like several have said....never had a problem. Chances are, @SGBARRACUDA (Roy) has a yoke he will sell you. If you talk real nice to him....he may even put a speedy sleeve on it if it needs it.