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73 Corvette Convertible, has power windows.
Drivers window rolls up and sounds like a normal window.
The passenger side makes a repeated thumping noise, like something being dragged up steps quickly. The window stops 1 inch from the top.
Does this sound like the regulator or the motor?
Trying to narrow it down before I get in there and start replacing things. I'd prefer to not replace the motor if that's not the issue.