Bummer - I wish this thread had been around a few months ago. I had read a few other posts about LMC's questionable quality so I ordered some vent window seals from Classic Industries instead (NOT Classic Parts) in Nov '12 for my 1986 K5 and sure enough they already started cracking and shrinking (they're marked "Made in Thailand"). I should've returned them immediately when I saw their point of origin but the other door/top seals I ordered seem to be holding up ok. I guess theyre too old to get any kind of refund or return...I'm thinking of replacing them witth Soffseals (although OEM would be nice if found). I'd like to go with 1A Auto but I need the 2 piece seal which wasn't listed on their site...
Im willing to give 1A a shot! Going to look now at some parts i need.