I have yet to see a "rear fill" rear frame mounted fuel tank that doesn't hang down like a ruptured duck. If ya think about it, the license plate is low, and if the filler neck is there the entire tank will need to hang below that point for it to fill correctly.wondering what tank guys are using for rear fill. That will fit between frame rails. Fill behind license plate. Someone told me a chevelle but none I've found will fit.
..... some installations look good, some hang down pretty low.Well after more though I think I'll put the tank under the bed in the rear and put in a side fill. Maybe an early suburban or blazer tank?