I'm in the process of restoring the heater box on my '66 and my only question was with the location of the oval shaped foam gasket that goes around the heater core nipples. Does it go under the metal cover or does it go outside the cover to help seal against the inside/cab side of the firewall? I couldn't see any evidence of where the old one was located.

 

Inside the cover, against the heater core,as shown in Schuyles 2nd picture above.

 

Very nice job!

 

Thanks Schuyles!
I plan on tackling mine today since when I removed the heater hoses to replace them, I noticed the heater core is flopping around inside the heater box.
I see D Carpenter has a heater seal kit specific to several trucks but the 65-66 f100 kit Part #: C5TZ-18500-A doesn't contain very much. I plan on purchasing the 66-77 Part #: C6TZ-18565-S Bronco kit as was done in this thread.

Thanks to everyone in this thread for sharing.
Edit/ Oops just found this previous post - https://www.ford-trucks.com/forums/9...read-this.html

Chris
66 F100 custom 352 3sp on the tree w/ OD

 

I’m glad it’s helpful. Good luck on your repair!

 

I also am in the process of replacing the heater core and seals in my 1966 deluxe heater.

The problem I am having is, I can't really see the details as to how all of the seal kit pieces go in/on the heater box.

Can someone post some pics that can be enlarged enough to see the details?

 

Can anyone help me on this??

 

Not sure what other pics you need? Posts 9, 10, and 11 show pretty well on my phone and desk top. Let me know and I'll try and get pics of mine once I get the kit and install it.

 

For some reason I can't get the pics to enlarge.

I'll wait for your pics after you have completed yours.

Thanks

 

SjoDon, I received the kit today. Here's a diagram of the seal placements. I've scanned it for you and will try and include it to this post. The asterisks show the location for each pc.

66-77 Bronco Complete Heater Seal Kit (13 PCS) CJ Part # HSK14

 

Thank you,

 

I bought mine from Tom's Bronco. I believe this is the same as DC's C6TZ-18565-S and is cheaper at $16.95.
In fact, it's on sale right now for $12.95
https://www.tomsbroncoparts.com/prod...ord-bronco-new

Tom's also sells the inlet boot kit, which I just ordered. It doesn't match the original, but should do the job.

 

Chaotic MN

That is exactly what I was needing.

Thanks, Don