This was taken from the 6066 GMC site, I ordered a set this morning and will report back to the group with a pic tutorial.
********************************************************
Guys,
Finally found them, correctly made beltline felts that go on your door at the opening at the bottom of the window.
Most suppliers like L&M ,classic and others are all getting them from a supplier in Taiwan, or China and these units are made incorrectly. The issue is the placement of the mounting pins, on these units, the pins are in the middle section of the beltline piece. What this does is place the bottom edge of this too low so when you try to roll the window up you CAN'T because the channel holding the window hits it so a gap is always at the top. I just received a set made in the USA, with the pins located at the bottom, they are a copy of the originals, made with a steel frame, steel pins.
https://www.rubbertherightway.com/19...89490-prd1.htm