I've had the heater hoses (90 degree plastic hose for radiator fluid) replaced on my GTP a couple times, we tried the AutoZone type then did a GM type and still they continue to bust/crack/break. My mechanic thought he saw a metal version of them somewhere so I was wondering if anyone has seen this and where to buy them to speed up the repair time. Any help would be wonderful or any other suggestions on how to keep these damn things from breaking. Thanks!!