I am looking at buying a 1985 k5 blazer and there is a problem with the heater. This is big for me becasue i need defrost i live in washington State its cold regulerlly here so defrost is key. Do you guys have any ideas on a good site for parts and should i ask for a lower price from the guy who is trying to sell me the truck.

 

they are fairly easy to figure out, those trucks are very easy to work on