Just picked up a running 1958 5.5 with pressure tank for 28.00, yup only 28 bucks on EBAY! Cant believe it, neither did the seller, Runs great. Wanna get rid of pressure tank though. Looked at how to videos. Im very handy with these, is all you do is remove both flapper valves and discard, plug one with a vaccum cap and install aftermarket pump? In addition to new fitting of course. Anyone need pressure tank cheap?