Well the lip was a stock feature on Shelby's. Is this the spoiler you're referring too? https://d2zl5tj7gmc4tr.cloudfront.ne...ts/44210-1.jpg This is the optional spoiler from '69 - '70. I've seen a few '67/'68 Shelby GT500's with that spoiler installed. Had a few pictures I took years ago but I wouldn't know where to find them to post them. It's definitely not stock though,and never was an option. But I think it looks good. Maybe it's because I once had a '69 Mustang Mach 1,390ci with 4-barrel carb,4 speed manual,trac-lock rear end,magnum 500 wheels,and full gt package. Wish I still had it as she was quite rare.Originally Posted by V8Addict Go to original post