I have a 760 Turbo wagon with a burned out rear wiper motor (no doubt due to a corroded shaft). It has been inoperable since I purchased this vehicle 6 months ago. I have removed the motor and bench tested to comfirmed its dead state. I can't figure out how to disassemble this sucker. Is this motor rebuildable? If so, how can it be disassembled and what needs to be replaced? Any idea what a motor shop might charge to rebuild it (hopefully a lot less than a new or used motor)? Any and all help would be greatly appreciated as winter is quickly approaching here in Michigan.