quick question did you replace the rear heater hoses? I recently replaced my water pump and replaced the head gasket that leaked water into my engine. Well with newfound pressure in my cooling system my hoses began to rupture left and right. right now it looks like if i have a leak in the hoses that go to the rear heater system and the problem is that the leak is in the part where the rubber and metal crimp. (hope that makes sense) Now with my suburban being 13yrs old and with 226K miles i don't feel like spending big bucks for a new hose and well i don't trust the junk yard ones (b/c they may rupture with the pressure) Now i am wondering if i can just replace those metal pipes that run to the rear with new hoses? or do they have to be metal for pressure purposes? thanks