I figured that this may help others like myself who might initially be intimidated by taking the whole wiper mechanism apart. Mine was original, and completely jammed up with old grease, and corrosion on the motor spindle. It's simple to take apart and clean up, just be careful about those roller bearings on each side of the transfer case housing. After a lot of Blaster, alcohol and acetone with some brushing I got all of the old grease off. A brass wirebrush cleaned it up nicely and the photos in the link below ... I hope you can access it, cause I'm IT challenged ... show before, during after shots with all of the parts laid out. A good COVID-19 quarantine benchtop project. I still need one of the clamps that hold a casing to the first wheelbox, maybe one of you has that sitting around ??? :rolleye: Stay safe, be well, a video will follow when I install it with the motor.