Front to back heater pipe bore size (answered)
Posted: 10 Aug 2010, 13:34
Going to replace one of my heater pipes before it fails but I need to know the bore size for odering the correct GP80 hose and I can't measure the pipe without removing the pipe and losing the coolant butI need the van for getting the pipe.....chicken and egg situation 
I am sure I have read somebody say they are 5/8" internal diameter.
I am sure I have read somebody say they are 5/8" internal diameter.