Review on Diesel Installation Compatible Gravity Auxiliary by Fernando Marshall

I saw some reviews that made me wonder if I really wanted to go down this route. I must say, over 10,000 km and 5 times I forgot to turn off the ball valve and this block did not overfill my factory tank. It just worked great and the installation took maybe 20-30 minutes. I went to the cargo port to get a set of washers to put a hole in the truck bed to protect the hose that runs through it. So if they could include an overlay that would be a super bonus, but it's certainly easy to get your own too. Be sure to grab a hose and extend the vent at the top of the factory tank. This vent should be above your AUX tank. I put an air vent under the bed rail in the stanchion pocket.