2001 Ford Escape.
I've recently had some work with the transmission done, but in the past 2 weeks or so, whenever I brake while in reverse, it makes a loud grinding sound. However, I've looked through the whole brake system, and I can't find any issues or relations to the transmission that would make it occur only in reverse. Is there anything I should look into with testing, because I really don't want to have to deal with the transmission again unless I'm certain that it's the cause.