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Old 09-28-2020, 12:31 PM   #1515
pjmoreland
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Join Date: Jan 2005
Location: CA
Posts: 5,327
Re: What did you do to your truck today.The 3rd chapter

Quote:
Originally Posted by jsprengeler View Post
Those heater cores are a ***** to get out! Any tips/secrets you could share?
It sure was a lot of work. I'm not sure I did anything unique on this repair. I followed various pieces of guidance I found from searching the forum. I used pieces of wood to support the hood while the hinge was removed. I removed the inner fender (I had already removed it to do some rust repair and paint). I had a hard time separating the heater box from the firewall because the previous owner had glued it on there with an excessive amount of RTV silicone. I purchased a copper/brass heater from npdlink.com based on lots of comments about the aluminum cores not fitting. I purchased a heater box seal set from GMC Paul's and glued the round seal and air box seal to the air box with weatherstrip adhesive.
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