My shower door assembly consists of double sliding glass doors that ride on wheels that rest on a headrail. The bottom of the doors ride free, contacting nothing. There is a plastic separator shaped like a kind of W that keeps the doors from banging in to each other.
The doors have become hard to open/close and I've tried to remove them to replace the wheel assemblies but I can't seem to get the doors out of the frame gracefully. There's enough clearance to lift the doors up to clear the wheels off the headrail, but there's no way to actually get the door out of the frame after that. There's not enough clearance to get to the screws that hold the wheel ass'y to the glass. Trust me.
I suppose removing the plastic W might work, but it won't come out in one piece I'm sure, and finding a replacement will be tough. I've considered removing the headrail while someone manages the doors, but really don't want to go down that road.