Heater Core Replacement on 1999 Chevrolet 1500 Pickup

How do I replace the heater core on a 2000 chevy C1500 4X4 pickup?

Asked by for the 1999 Chevrolet 1500 Pickup
You might find a free manual here: http://bit.ly/autozone_repair_info or go to http://bit.ly/alldata_repair_manuals or http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.