W woodwright 1/2 ton status Joined Jun 15, 2010 Posts 148 Reaction score 1 Location North Idaho Dec 31, 2011 #1 Has anybody used a 73+ heater unit in their 67-72 truck/blazer? The parts inside the engine compartment are alot smaller.
Has anybody used a 73+ heater unit in their 67-72 truck/blazer? The parts inside the engine compartment are alot smaller.
cameronsaddress 1/2 ton status Joined Oct 13, 2011 Posts 284 Reaction score 0 Location ca Jan 2, 2012 #2 Do you mean just the heater core or the actual heater box?
W woodwright 1/2 ton status Joined Jun 15, 2010 Posts 148 Reaction score 1 Location North Idaho Jan 2, 2012 #3 Not sure. I just know the parts on the outside of the firewall are smaller than the 67-72's