I see you have a 2001 eth just like me, well look at the lift pump below your fuel filter and see how the wireing plugs into it . I am not sure of the vintage but some of the earlier rams need a small pigtail to addapt to this new pump. thats the way I understood it. so if we were to put your lift pump back by the tank than we would need the pigtail to plug into the pump and wire it up from there back to the original harness. ..... hope this helps... ... ... Kevin