HEATER CORE ON A EARLY 90'S FORD F150

The easiest eay to change the heater core on an early 90's f150 is to first disconnect the hoses from the fire wall then go into the cab and remove the glove box by pusing in the sides and sliding foward. You will see a black box on the fire wall remove the bolts and heater core will be inside that box slide out and insert new one put back together and you are good to go