I have.....the pedal bracket cracked, and actually the spot welds broke away from the body. Had to cut through the top of the cab under the vents @ the windshield wipers, make another bracket and screw attach back to the body. It was either that or remove the ENTIRE dash and tack it back. I really didn't have time or energy for that. It's been holding for over 5 years now.......You should be able to look under the dash, press the pedal and see if the rod to the master cylinder is traveling, or if the bracket is moving.
If that is not the problem, then it sounds like a bad pressure plate. The springs weaken and will not separate the disk from the flywheel. SO basically you're replacing the clutch at that point.

good luck.