How do you change thermostat on a 1992 dodge pick up?

To change the thermostat on a 1992 Dodge pickup, first, ensure the engine is cool and disconnect the negative battery cable. Drain the coolant by removing the lower radiator hose, then locate the thermostat housing, which is typically found at the engine end of the upper radiator hose. Remove the housing bolts, take out the old thermostat, clean the mating surfaces, and install the new thermostat with the correct orientation. Reassemble the housing, reconnect the lower hose, refill the coolant, and reconnect the battery.