heater core replacement on 2002 Chevrolet Silverado 1500

whats the best way install a new heater core.
does the dash need to come out or can i get to it from just removing the glove box.
any help would be great.

Asked by for the 2002 Chevrolet Silverado 1500
Yes, the dash must be removed. This is of course very labor intensive and probably should involve some experience or a good shop manual at the least. Good luck!
Thanks! I Will Give It A Try.