bought a pair of maverick door glass on ebay. never had glass shipped to me before..going to be nervous wreck till i have them.
Shouldn't be a problem as long as it has "FRAGILE GLASS" written on the box. I shipped a station wagon side glass and it got there in one piece
Do not worry much, I sent those same windows to a friend in Argentina and you ought to see how rough they handle international shipping!. As long as they are properly packaged and as rthomas said hopefully the package will be clearly marked according to its contents. Good luck!