[Corvette95]

If you remove the radiator and entire front airbox (not air filter cover- the upper and lower shroud), while not exactly a pleasant job (read tech info stickies for help) , you will find access to the thermostat and hose much easier- congrats BTW on getting it out like you did). You will also have access to the oil filter housing and can fix any likely oil leaks you have there (they pretty much all do). Your fan(s) can also run and be bad at the same time. They just don't turn fast enough to do any good. Compare each fan to each other and make sure they run as needed with a/c pressure switch.