This power window regulator from Omix-ADA fits the right rear door on 99-00 Jeep Grand Cherokee.
Power Window Regulator, Rear, RH; 99-00 Grand Cher
Does your Jeep window not roll up and down anymore? Or even worse, it's stuck somewhere in between. Omix-ADA offers high-quality replacements that will give you years of service. You won't need clear plastic and duct tape.