I recently got a new set of latches from Chevy Duty, or whatever their name is now. So, I have to slam the doors pretty good to get them to shut... I expected that with new weatherstrip. But the latches will not disengage. Turn the door handle..... nothing. The only way I can get them open is to use a screwdriver to reach inside the door shell and "walk" the latching arm off of the half round toothed bracket- it will not go down far enough to release it. So, after looking at this for a half hour, I have decided that the piece that slides down to allow the toothed bracked to fall was not machined properly, and it keeps the toothed bracket from falling the final 1/8 inch needed to open the door. I wish I had a picture to explain... Anyways, has anyone had this problem with chevy duty latches lately? (they are made by counterpart)