First you need to decide if you want an electronic gauge or mechanical.Then you can make a parts list.You do not want to run fuel inside the cab.If you go electronic you should start with a snubber or a home made restrictor,a remote mount for the sender and the gauge.If you decide you want to go mechanical you can skip the remote mount and add an isolator.With either you will need an adapter to plumb in either type.My point is you are adding a bunch of stuff that you don't really need on a stock truck