Does anybody have a genius way to change the freeze plug on the back of the right cylinder head? 95 V6 auto It's leaking and I'll be DAMNED if I'm gonna crack my head gaskets if I don't HAVE to. What size is it exactly? Do they make expansion plugs that small? Will JB Weld get me through for a couple of years? I've had 4 4runners including this one and to be honest, this one is a disposable vehicle, but I can't afford to dispose of it just yet. Thanks.