Thank you for your service and to take pause to remember those who gave the ultimate sacrifice and the friends who have passed away too soon from the...
I would not worry about the back if it feels like its only got a small amount of radial play. If it is way out it would allow the shift rail to start...
The shift rail is loose in the back of the case, where the case supports the back end of the shift rod. The seal end clearance seems pretty decent. ...