I'm looking for any info on retrofitting the gas tank on 73-87 trucks. I have found this: http://www.73-87.com/7387garage/chassis_suspension/fuelcellinstall.htm which is a start, but by no means ideal. This is where I'd like to put the tank because it doesn't require removal of the spare, and, with the proper design, could use the original fuel door with a longer filler hose. I've got a CAD drawing of the ideal tank started, and it would have a capacity of about 20 gallons. I think that the best material would be 1/4" polyethylene, but that would have to be mass-produced. Has anyone seen a suitable aftermarket tank?
