micro trains 02000006 Nickel Plate Road with Load

[rudywa]

Just received the micro trains 02000006 Nickel Plate Road with Load it was an April release, but hard to find. The doors on either side tend to slide way too easy for a micro-trains product, I'm afraid that when I roll this down the rails the doors will be shaking open, they move that easy, just tilting the boxcar opens the doors. Any suggestions you micro-trains experts?

Thanks
Trainster