Actually it was not LMC but rather the Truck Shop that has the correct tape. Their PN is 47-05807. Their number is 800-Chevy-47. They do not have a web site to my knowledge.
I would suggest dropping by a local auto glass installer with the vent glass and frame in hand. Show them what you are trying to do and ask if they have the 1/32" setting tape? You only need about three feet to do both windows and they will probably give that to you for free. The best outcome is they give you a good price to set the glass in the frames for you.
When I did this I got quotes ranging from $75 to $150 to do it. Your experience may vary.
Last edited by Houston54; 01/17/2008 5:34 PM.