[StlRomAniaN]

All,

My interior is stripped down. Dash is out. Frame within the dash is out. Windshield hasn't been touched. Now I just need help getting to the heater core. I have no idea how to get to it now that this black box is in my way. Also, what are the steps to swapping out the heater core? Do I need to drain coolant? From where and how much? Thanks for all of your help in advance. Hopefully someone has access to a service manual.