I just did this on my truck. I ended up using a small saw from my friend to cut off those crappy connectors. Ill go with the gruven maybe next month when i address every hose in the cooling system. But what about the rear? I didnread that the rear heater core has some problem with the line breaking or something.
I have the plastic replacement ones for the rear. Dorman seems to be the only ones in that size. I got the part number off here. but I haven't got around to replacing them.
another guy had a hard time getting them off and the hose on the other end is a factory crimp fit to metal pipe. doesn't look fun job and I got lazy. I can look up the part number if you need it but they are plastic