Side glasses go only halfway down.

[luvbowties]

Had new insulation, channel bars & fuzzies put in doors of '66 during rebuild. Got it back in winter, so did not roll down windows until warm weather. That's when I realized BOTH glasses "bottomed out" when they got about half way down. Builder told me regulators were worn out; so I bought just one for pass. side to ensure he was right. He replaced that one, but it is no better after new reg.

Anyone else run into this problem? Any suggestions/ideas?
S