Look for a screw at the top right side somewhere. I did the heater core in the '72 about a year ago, damn if I can remember exactly what I did. I know there is a screw somewhere up there that is easy to miss.
When I did mine, I did take the whole box out of car, 4 bolts engine side. That way you can see clips an all much better. Aftermarket core did not fit 100%, did find a FoMoCo and fit much better
i find ...there is always one more clip... i would replace the heater ...hoses...at this time. the first ...new core...i got was ...junk...as was suggested...have it pressure tested first. take your time...these boxes are brittle... good luck :Handshake ......
Well my heater core is out, and now I have a busted up heater box. Whats a good way to patch it back together, I was thinking some fiberglass & resin.
Well with me using the duct method wont it seem like I have the heat on all year long while I'm driving in the car?
I busted mine up too. I used some two part epoxy resin to glue it back together. Auto parts stores sell it in kits to repair bumper covers on newer cars and stuff. Worked great. I also agree with Frank, go ahead and replace the heater hoses to the heater core while you have it apart.
Lol. I replaced mine last weekend. My car has ac too so it was a pain. I busted up the box getting it apart, but used some two part epoxy to glue it back together.
