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Old 02-10-2021, 07:31 PM   #6
eric8
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Join Date: May 2013
Location: Utopia
Posts: 215
Re: Non A/C heater core replacement

Quote:
Originally Posted by Dead Parrot View Post
I have done both. A 75 with AC and an 84 CUCV with heat only. In neither case did I pull the seats. Do your best to clean the threads on the through the firewall bolts. As mentioned above, the bolts are hard to find as they have a clip instead of a normal bolt head. If the threads bind, you can snap the bolt or break off the piece of plastic the clip snaps over.

Do plan on removing the glove box.

Wait until you have the old core in hand before picking up a new one. Some of the suggested replacements are only sort of close to the size of the old one. Being able to compare old vs new is good.

The 75 with AC had a bolt with the nut on the passenger side unlike the other three. The 84 bolts all had the nut on the engine side. The odd 75 bolt was black on black and hard to spot.
Thanks for the great tips. I like to start a job with as much good info as possible to save on the headache later!
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