To start I have a 99, 2500, Auto, 2x4, 211,000, Lift pump in tank with Relay, 275 HP Bosch Injectors.   I am the second owner & got the truck in 2001, IIRC it has 15,000 on it.    To make a long story short, I just finished doing a bunch of things I have been putting off for too long now. Recently replaced (in order of installation): Vacuum pump (http://www.fixinrams.com/) PS Pump (https://www.genosgarage.com/) & Hoses (https://ormebrothers.com/). B