yeah, what Denny says, if it's currently stinky you need to re-do the filler rubber bits, including the gasket on the cap - if you think you'll gain room in the cab, study it more carefully .... if you insist on replacing the spare tire with an "IED", you need to measure up where you think it'd fit and check the wreckers for something that looks close, then figure out how to rig a filler and find a 30 ohm sending unit for it to drive your original gauge
Bill
