Ok everyone I have the parts coming in Today and Tomorrow to replace my Heater Core.  I am also going to swap out my Evap and Blower motor while I have the HVAC Box out.  To top it all off I have needed to replace my Dash for awhile now so one is on the way from LMC Truck and that will be going in as well.  Mike I have seen your video on You Tube and it breaks things down pretty well for the HVAC Box.  If there are any little tid bits or pieces of advice anyone has please share them with me.  I