Coolant leakage (Barracuda -69)

"I had this problem too! I talked to an old Mopar guy here locally and he suggested I buy the good water pump/thermostat sealant from Permatex (I think it's grey in color). Clean both surfaces very well, slather the sealant on both sides of the gasket, the intake and the thermostat housing. Put it all together and tighten the bolts only finger tight, wait 30 minutes and then tighten them with a socket. It worked like a champ for me and has been leak free for three years."


I will go for this approach and in addition I will "sand paper" the chrome since it seems this is not the best of material to seal fluids.