like it says ,looking for a w/b dont really have a prefference .my plx **** the bed awile ago and im using alot of gas just need to know whats up.my gauge stays at 14.6-7 im pretty sure its the box under the hood or the sensor ,so if anyone has plx parts let me know ,or ill just buy a whole unit off someone dont matter.i just dont feel like buying another 400 dallor gauge ,ive had 3.