7. We installed the original...
7. We installed the original fuel pump and pickup into the new tank, while being careful to index it with the fuel lines facing toward the front of the truck, where the stock fuel lines are located.
8. This fuel line connects...
8. This fuel line connects the upper portion of the front and rear tank sump. One end of the line was left loosely connected because it would need to be moved when the tank was installed into the truck. If you're wondering what the large missing section of the tank is for, it's to provide room for this small radiator (inset). The radiator cools the diesel fuel after it leaves the high-pressure fuel pump and heads toward the filter.
9. It's now time to install...
9. It's now time to install the tank. Since our truck was hoisted into the air via a chassis lift, we used these large jackstands to hold the tank in the air.
10. Once the tank was in...
10. Once the tank was in place, the fuel lines were reconnected to the fuel pump.
11. Transfer Flow includes...
11. Transfer Flow includes these multi-piece strap-type mounting brackets, which we pre-assembled and then bolted around that tank and into factory bolt holes. No drilling was required, and the brackets are foam-cushioned to prevent gouging the tank.
12. The last piece of the...
12. The last piece of the installation, and this is super cool but optional, is a new high-flow filler neck. This type of neck allows you to fill up your diesel truck at any high-speed commercial truck fuel pump, which makes refueling much faster. Interestingly, the filler neck reuses the factory filler tube, after you remove the restrictive smaller-diameter inner tube.
13. And finally, we threw...
13. And finally, we threw 5 gallons of diesel in our truck to get it fired up and over to a refilling station. The motor lit right off, and the fuel gauge read accurately. What little amount of fuel we had onboard made the gauge just barely read a tick over the empty line. Once we were at the gas station, it cost about 180 bucks to fill the thirsty new tank, but the owner reports driving for weeks without needing to stop for a fill-up. Nice!
The Final Word
With the right size set of jackstands, you can perform this install at home or just take your truck to a capable shop, such as Billet Superstore. Don't forget to empty out the stock fuel tank before you try to remove it though. We were thoroughly impressed with how well the new tank blended into the truck, and the fit and finish were excellent. We spent roughly four hours doing the installation, and our only gripe afterward was that the factory fuel economy gauge couldn't keep up with the extra capacity the Transfer Flow tank provided.