Pinion bearing ?

Here is the deal. I removed a set of 4.10 gears from a 489 case and I am selling them to Jack. The 489 unit was just rebuilt 200 miles ago before I bought it. So from what I read here it would be better to leave this bearing on to make Jack's job easier when he puts it in his carrier. This is the first time I have ever done a rear end before but from what I can tell I have a crush sleeve. So if I just leave this bearing on and get a new one when I order my new gear set all will be good?