Is the fuel system on these trucks reliable? I have a 2015 model. I put a FASS system on my 2000 model after replacing 5 lift pumps in a short time. If there is a problem with the new pumps I will put a Fass on this one. I'm guessing the pump is in the tank on these newer models instead of on the block. One good thing about the FASS is if it ever does need changing, it's an easy job. pulling the tank would be a nightmare for me.