window regulator question and WHEW! moment

Just wondering: 1964 Buick Special, are the wheels on the door window regulators supposed to spin? I know it's probably a "duh, yeah" answer but I just want to make sure before I break something. The wheels look to be in good shape, maybe they are just locked by decades of dirt/corrosion? They do not want to budge when I try to rotate them. Just wanna make sure.

So now for my WHEW! moment. Wisdom comes with years I'll just say. I have 2 1964 Buick Special 2 door cars and between the 2 cars, all 4 door windows had separated from the regulator bracket who knows when. They all had the windows held in the up position with the regulator wheels jammed up against the bottom edge of the bare window. So since the window brackets with the roller channels were either buried inside the door shell or laying in the trunk, depending on which car, I had no reference for driver's vs. passenger's side window bracket. I was all ready tonight to re-glue my driver's side window to the window bracket, when something told me to double-check if I had the correct side (the wisdom with age kicking in...). I mocked everything up and what I thought was logically correct was not, and now I have it figured out-before I went ahead and glued something on backwards! My heart said "ah you're right, no time to mess around just glue it..." but my brain said "slow down, test-fit the bracket in the regulator before you glue everything together with that ultra strong professional windshield-setting glue you have.." Thanks brain.

 

I bought some of the Carpak (#98-7819) brand rollers that thread onto the window itself. The rollers do not spin worth a darn. I called them up and they said they have sold thousands and have never had a complaint.
I also talked to a friend and he said they are more of a slide than a roller, but with age, they begin to rotate.
Here is the Carpak link. The ones I bought, which are exactly like the originals except take a lot of effort to rotate.
http://carpak.com/files2/4_WindowParts2005.pdf


All that being said, I also bought some of the rivet on type rollers that go on the tip of the regulator arms and those do indeed roll.

So who knows, I plan on using what I have and lubing the heck out of things. I was planning on using white grease on the tracks, but now of course I am reading things about that grease hardening and that I should use a synthetic instead.