[qcj]

I have now worked on the passenger side wiper and have it working. This was my first experience with this problem and with some help from Michael Day and others I understand it more. After taking the wiper off and turning on the wiper one arbor turned and one did not. The one that did not turn, I learned it is freewheeling. It was rusty and I could not turn it by hand. So I took the clip ring, washers and O ring off and oiled it and finally got it to turn with my fingers. Both arbors have splines and the drive arbor's splines were full of the soft pot metal the wiper housing is made of making it smooth, so I cleaned it. I noticed the wiper housing doesn't have splines so I guess when one tightens the nuts the steel splines will embed into the soft metal the housing is made of.
So be sure if you have wiper problems that the splines are clean and sharp.