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Wasn't as horrible as I thought. probly an hour to get it out. 

 

I am reinstalling with heater hose adapters.  Instead of tearing the truck apart more.

 

I may see if i can finangle the swivel lines through but on a quick look in the dark I don't think they go without do the other 3hours of disassembly 

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I did mine with the swivel lines and didn't have to pull the hvac box out.  You have to work the lines through the fire wall as you drop the heat core in the box.

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Should of pull the HVAC box completely and cleaned out all the old anti-freeze and lubed all the door pivots and the stepper motor too. Evaporator for the A/C typically looks like crap by the time a heater core fails. 

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