How do i remove the thermostat base housing on a 1984 Cadillac eldorado with a 4.1L v8 252cid engine?

To remove the thermostat base housing on a 1984 Cadillac Eldorado with a 4.1L V8 engine, first, ensure the engine is cool and disconnect the negative battery cable. Drain the coolant from the radiator to prevent spills, then remove any hoses connected to the thermostat housing. Next, unscrew the mounting bolts securing the housing to the engine block, and gently pry it off. Clean the mating surfaces before installing the new thermostat housing.