I had Bushwacker Flares on my 66 for about 30 years in Phoenix, AZ. But it was garaged, and didn't get out of the garage for a 10 year stretch %). But they did hold up well, however they did get brittle over time and finally cracked apart when I leaned against the fender several years ago. At that time I went to the Gorilla Warflares and I love them!