I did some work on a modified 57 3100 a couple of years ago. The owner said he installed a 65 Mustang tank. It looked like a fairly good fit. He had the fill inside the bed. It's probably the same tank as a Falcon of the same year. Mounting the tank in that location uses up the space for the spare tire.


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine