Differential housing joint flange play

[Wew]

Hi all,

In the middle of my transmission refresh, and replace the seals in the differential.
Now that I have things back together I notice on the one side I have .6mm of in and out play. When I look at the pelican parts catalogue one image has the main stretch bolt going right in to the joint flange. The other image has that same bolt with a washer.
When I took it apart I do not remember there being a washer, nor do I remember the slight in and out play.
I have attached pictures of what I am referring along with the side. The other side of the differential has no in and out play.

Thanks,

Gary