16 2500HD· Registered
2016 2500 6.7
Stock lift pump on 3rd gen ram is in the tank, like gas cars and trucks but lot less pressure. If your interested in things like FASS or Air Dog there is plenty of information on that as well. I just noticed your posting in 98.5-02 forum, I don't know for sure but I think the lift pump isn't very good or something most people go with the FASS or Air Dog for those years.