Did my heater core last summer... 9 hrs later I had the ***** finished, my first time) once I had whole dash out I was incomplete shock n awe I wasn't sue if I was going to put everything back the right way lol

 

Ya I did this before with a Jeep I owned a couple years ago, it takes a good part of a day to do it. When I decide to do the dash I am probly going to take out all of the seats and carpet to clean it as well. Might just pick a weekend to clean up the whole interior and replace heater core.