Shaft Length

I see it as the arrow is pointing to the spacer in the middle. Give Cass a call. Aka Doctor Diff. He will tell u for sure if u need to remove anything. I never have when I used the bearings with the snap ring. As per Cass. Kim
I see it now. Totally different spacer than what's in the clutch type Limited Slip diffs that I'm used to. And I can also see that it would be a pain in the butt to try and remove it.