Veek, you talking Shelby campagined GT's or Shelby Mustangs? If you are speaking of the GT350's, then do you have a Tony Branda cataloug? If you are speaking about the Le Mans stripes that go over the car, they were the same for 65 & 66. They were not equal widths over the car. Optically, they look the same, but they are not. If you are speaking of side stripes, the 65's were wider. They were painted on in 65, and the 66's were tape. Again, Tony Branda's catalog has all the dimensions. If you've seen the ones on my car, they are tape and just say FORD GT. The dealer who put my cat together has the pattern for these. I'm sure he'd make some if the price was fair. Let me know if any questions...