[jmoti]

Hi all,
I replaced my passenger side window regulator last weekend, and it is now exhibiting a strange "shuddering" problem when it goes up or down (moreso when going up). I can feel a pulsation in the main toothed gear, but I'm not sure if it's originating from that or if the window might be somehow out of alignment. I tried playing with all the adjustments, including the alignment arm on the regulator, but nothing seems to help. I've also greased the heck out of all the pivots, gears, and slides, also without benefit. Any ideas before I tear the whole thing apart again? This is frustrating... Thanks!