yeah man yours are HUGE.. but i got mine for free... lol I just had to pay shipping and i had to buy an air kit from advance, that is actually where i just came from.. I got less then $50 in everything.. im gonna throw them on back and run mono, so i will still be able to haul stuff too..lol
ANYWAY yeah you can hook a valve up.. I actually have the fittings with mine.. but im gonna bag the truck eventually
i swear im temped to run these shcrader valves into the cab of my truck, and get one of those mini comp's they sell at walmart that plugs into the cig plug..lol Fill em up from the cab...lol