Power window conversion

OK,
The stiffness of the rollers had really started to bother me, they were hard to roll when I tried.l can imagine this would put a HUGE strain on the motor so..
I made a tool for my electric drill to "exercise" the white rollers on the EL power window mechanism, to no avail.
Since I had already made a "wheel puller" for the window hardware I pulled the rollers and ran a 1/4" spherical dremel cutter on the inside of the Main roller and reassembled them. They now spin effortlessly. I suspect this will help.
Ill let you know when I put the glass in.
Andrew