SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
I BELIEVE THE SUBURBAN SERIES VEHICLES HAVE A DESIGN DEFECT IN THE BRAKE SYSTEM BECAUSE THE REAR BRAKE HOSE(FROM THE BODY TO A CONNECTOR ABOVE THE DIFFERENTIAL) IS USED AS A SUPPORT FOR THE PARKING BRAKE CABLE. THE STRONGER, HEAVIER PARKING BRAKE CABLE RUBS ON THE RUBBER BRAKE HOSE, CAUSING THE RUBBER HOSE TO FAIL. THE PARKING BRAKE CABLE DOES HAVE A 2INCH METAL SLEEVE OVER IT NEAR WHERE THE HOSE AND CABLE RUB. HOWEVER, THIS SLEEVE IS NOT LOCATED WHERE THE NATURAL LAY OF THE HOSE/CABLE IS. IN FACT, THE SLEEVE HAS A ROUGH EDGE ON IT, WHICH CAUSES ADDITIONAL WEAR ON THE RUBBER HOSE. THE RUBBER BRAKE HOSE IS ALSO BENT WHERE IT CONNECTS TO THE TRUCK BODY BECAUSE THE HOSE MUST SUPPORT THE WEIGHT OF THE PARKING BRAKE CABLE. THE RUBBER BRAKE HOSE ON MY SUBURBAN WAS ALMOST WORN THROUGH WHEN I NOTICED IT. I BELIEVE THE FIX COULD BE THAT THE PARKING BRAKE CABLE BE ROUTED BELOW THE RUBBER BRAKE HOSE WITH A RUBBER DOUGHNUT BETWEEN THE HOSE/CABLE.O. *AK