I used the Classic Auto Air Perfect Fit one in my 69 Barracuda. It fit fine and wasn't too hard to put in, but be prepared for the WORST instructions you will ever read. When I was done, I Emailed them a 10 page document correcting errors in their instructions. Some of the errors will leave you dead in the water until you call their tech line. The tech guys were friendly and helpful, but there is no excuse for such poor instructions.
