Yes it can be done heads on engine but it’s not the easiest. Do all 8. You’ll need a remover and installer and some specialty green loctite. As far as something you could have done to prevent this, not really no. They just crack over time. I would drive the truck like this at all if it’s overfilling the coolant explanation tank. As Cline said, you’ll need replace everything rubber in the cooling system, flush the radiator and heater core at minimum and replace the water pump.
Last edited by mattd; 07/20/19 07:23 AM.