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- Mon Nov 29, 2021 6:11 pm
- Forum: **GENERAL TECHNICAL HELP**
- Topic: Heater core
- Replies: 18
- Views: 1745
Re: Heater core
I just replaced the heater core in my 1970 D100. This was a factory AC truck, so the core is different from the non-AC trucks and it was a pain to get that huge box out from under the dash. The AC trucks have the typical bolts/nuts out on the firewall, plus two brackets under the dash. One of the br...