Found out not all 73-87 side windows interchange

[Old Yeller 1970]

Actually, the glass appears to be the same but if the track is different the window will not roll up completely.

I discovered this yesterday while I was trying to replace the driverside window in my '86 GMC 1500 because Wednesday I was mowing the lawn next to my gravel driveway and when I got done you can imagine what I found. So, after retrieving a window from the local junk yard I got the thing installed yesterday morning.

I'd noticed that the track looked different on the window they gave me. It was more like the track in a 67-72 window but figured it wouldn't matter. Well it would only roll up about 3/4 of the way and after spending the rest of the morning taking it out, getting another window with a track that matched the original, I finally got it right.

Any one else run into this?