I just called my local dealer, they told me there were two lift pumps available for an '01. std. and H. O. Has anyone ever heard of this? If so will the HO fit a std. 235hp truck. I just installed banks big hoss tuner, and gauges. My fuel press. is 9-10 at idle 6 on highway and o-3 wot. I know I need to replace pump!! There is no question there.