Ford offered a 19-gallon midship tank (this is the tank that should have been on the truck), but then I found that Transfer Flow of Chico, California, offered a whopping 50-gallon midship auxiliary tank. This sounded like the ideal setup and would give me a total fuel capacity of 90 gallons. After I spoke with the staff at Transfer Flow to determine that I was getting the correct unit for my application, I ordered it.

I liked the fact that I did not have to cut into any of the factory fuel lines or electrical wires, and the fuel was transferred from the auxiliary tank to the main tank using a separate pump. In the unlikely event that something went wrong with the auxiliary system, the main fuel tank would work fine and would not leave me stranded on the side of the road.

Wow, It’s Heavy!
When the delivery truck arrived, I knew I was in for something special from the size and weight of the shipping container. I planned to use a friend's shop that had a lift to make the installation easier. I don’t pretend to be an expert mechanic, but after talking to the folks at Transfer Flow, I figured I could probably handle the job.

I wanted to save as much money as possible, and installing it myself would save me hundreds of dollars. Besides, any money I saved now would go into filling the tank with diesel later! I invited a friend over to help and used beer as payment. Unfortunately, once my friend and I arrived at the shop, I discovered that the lift couldn't handle the F-550. It was time to break out the creepers.

For the sake of simplicity, I'll just tell you that the installation went smoothly and that, overall, I was pleased with the Transfer Flow midship auxiliary fuel tank. The quality of the product was excellent, the installation instructions were clear, and the diagram they included was very helpful. The best news is that I'll never have to worry about running on empty again.