I’m looking at a fuel pump assembly from a 2003 chevy tahoe. Pump is contained in some sort of plastic cup deal. Is it necessary to still have baffles in your fuel tank, or does the cup provide you a reservoir? I believe Dodge D150 from 90-92 may have something similar. Can anyone comment on pluses or minuses?

If you can find a way to properly seal the unit to the top of your tank AND have the return line dumping into the cup you will be fine. Of course adding baffles is much easier to do when you have a large hole cut into the tank. You would need a tank unit that has enough extended length to push against the bottom of the tank. Usually they are spring loaded and push against the tank floor, if it isn't long enough you will fuel starve at less than empty.

Not saying it is a good idea for a truck but I remember finding a company selling anti slosh "wiffle" balls for use in semi tanker trucks. I had never thought about it before but several tons of fuel will have a lot of momentum on a truck.

If you did go with the easy wiffle ball baffles route you would need to find a way to have a working fuel gauge since no lever arm method would work with the the ball moving around.


Can you just get a tank from a later EFI truck? If you have a first gen ram(82-92?) those did have a factory EFI tank. And honestly with a truck you do have a lot flexibility in fuel tanks. The truck and its frame don't really care what is holding the fuel. Just make sure it is very well secured with proper straps and hardware......no rachet straps or zip ties lol.

My truck is a 1984. So a 90-92 tank would be fine. Just like to pick the brains of others with more knowledge. Future plans are for a turbo and holley 350. No fuel injection, but fuel needs are similar. Just need to regulate to lower pressure. I do not believe sealing a tahoe or other unit would be too difficult. Something along the line of a fitech retrofit design.