hello all, the drivers side window on my 1985 300sd started acting up last week. took the door panel off today and discovered 3 ground down teeth on the gear that rides off the motor to open and close the window. do i need a whole new assembly or can the pie shaped gear with the ground teeth just be replaced. i looked at epc and couldnt find a diagram of the mentioned gear. thanks in advance. jim

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1997 E300D Wife's daily driver
1985 300SD my daily driver
1999 Expedition family road trip and material hauler