his answer wasnt helpful? have some one look it up on alldata for you. some fords you can change it thru the glove box. im pretty positive youll have to pull the dash. you might be able to just pull it out far enough to change the core. ive done it that way on some vehicles. dont sweat it. pulling the dash is easy.ts just time consuming. if i was to do it at home id plan on a weekend.
The only short to replace heater core on 2004 dodge ram 2500 diesel is by following the documentation manual that came with your truck when you bought it. Consult a mechanic for more professional help.