I am using a 1969 Mustang gas tank. It fits inside of the stock frame rails, although you have to trim a little of the bottom channel about a 1/4" towards the rearend. I drilled out the rear crossmember rivits, and will be bolting it back in. When removed, the Mustang gas tank will slide right in. You can see the tank installed in my album link below under 1955 Truck Project 2.
Last edited by Oleblue55; 03/14/2010 9:13 AM.