[68gmsee]

I bought mine from GMCPaul's about 3-4 years ago and my truck sits outdoors in 100 plus summer heat and the 20's in winter. Haven't had a bit of problems with them other than closing problems mentioned above. I moved the striker bolt out slightly to compensate.

I also found out that it's better to slowly close the door to within 6-8 inches before pushing harder. The compressed air in the tighter cab makes it harder to close when you try to slam the door shut. Now, after 3 years, the doors shut easier but still a tight fit.

If you get brand new ones I recommend leaving at least a 1/4" or more on the bottom gap in case there's some shrinkage of the rubber. Best to bunch it up slightly than to have a gap later.