I'd like to mount an aux. fuel tank in my 69 crewcab 4x4 stepside shortbox. What tanks would mount between the frame rails? Are there factory tanks that will fit or do I have to experiment?

 

Well, I have a 72 2wd crew cab. I got a plastic tank from a 79 crew cab. The 73-79 crews share the narrow rear frame width as the 67-72 2wds . This particular tank came from a f350 camper special. It mounts behind the rear axle in between the frame rails. I plan on installing a fuel filler in my bed side to look factory but you could probably rig a filler hose from the wheel well if you don't want to weld in a filler door. The plastic tank is less than 20 gallons, it has an additional crossmember that bolts in to mount it and a skid plate and various heat shields. I also found a 67 f250 with an auxilary tank that mounts under the cab and bed with a filler throught the upper bed side towards the front. It looks factory, but the filler intrudes into the inner portion of the bed with a sheet metal housing to shield it from cargo. I also swiped the rear shock mounts and sway bar from the 79 which is a rare find since they fit the narrow frame. I will get some pics if you need them.

 

Yes, they had a factory aux tank that mounted under the bed and cab. It is the one with the cutout into the bed for the filler tube. I was able to find a setup right here from one of the other members. I think it will work fine. The bigest difficulty with it for me has been locating a sending unit. I'm going to try to modify a 73 rear tank sending unit.

Larry