i recently purchased a 70 240z in great shape, but i find when i roll up the windows, i basically have to push them out as they near top window frame to get them to seat in the weatherstripping. i've tried adjusting the tracks, but that doesn't seem to help. i've searched for a good exploded view of the door, but none of them show the rollers. on my car both the rollers are on the outside - is that correct? They push the window inward, which seems like its causing the problem. any help would be appreciated. thanks, Ken