Ha ! Did mine as well. Used a Z hose I got at Supercheap and cut out what I needed. Then while everything was off changed out the water heater control block and the heater supply hoses to silicon on both sides. While attaching said hoses to the plastic hose fitting that goes through the firewall to the heater core they crumbled due to age. Got new heater core supply pipes, de gassed the air con took out the glove box pulled out air-conditioning fan unit and took out the heater core went to change out the busted pipes and went nope ! Went and got a brand new heater core, attached the heater core pipes, put the air con fan unit back in, re attached the new silicon heater hose, put the air conditioner fan unit back in got it regased annnnnnnnnd Bob's your uncle ! 5 minute job really ! AND I AINT DOIN THAT SH*T AGAIN ! !