Transmission tunnel insulation
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Joined: Nov 2015
Posts: 78
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From: St. Louis
Transmission tunnel insulation
I will be reinstalling my 4 speed transmission soon in my 1970. Should I replace the insulation with a stock replacement or is the a better material to use?
Thanks
Thanks
Team Owner
Joined: Sep 2006
Posts: 31,283
Likes: 4,374
From: Westminster Maryland
Hi JLm,
The original insulation of course installed on the transmission side of the tunnel. Most of the new heat barrier materials I see are installed on the interior side of the tunnel.
I'd put an original one in place and then think about doing the interior barrier when you're working on the interior some day.
Regards,
Alan
The original insulation of course installed on the transmission side of the tunnel. Most of the new heat barrier materials I see are installed on the interior side of the tunnel.
I'd put an original one in place and then think about doing the interior barrier when you're working on the interior some day.
Regards,
Alan
Last edited by Alan 71; Mar 4, 2016 at 08:37 AM.
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
I agree with Alan completely. Put the stock insulation in while the transmission is out––it's the only way. You can look at other products for the interior side of the tunnel.
The original tunnel insulation, when combined with the foam collar that sits on the bell housing, is quite effective at doing its job. It's often, unfortunately, tossed out at some point during a car's life.
Examples:
Insulation
http://www.parts123.com/corvettecent...50g&ukey=14948
Foam collar
http://www.parts123.com/corvettecent...50g&ukey=14947
The original tunnel insulation, when combined with the foam collar that sits on the bell housing, is quite effective at doing its job. It's often, unfortunately, tossed out at some point during a car's life.
Examples:
Insulation
http://www.parts123.com/corvettecent...50g&ukey=14948
Foam collar
http://www.parts123.com/corvettecent...50g&ukey=14947
Last edited by Brcmpbl; Mar 4, 2016 at 09:25 AM.
Drifting
Joined: Jun 2013
Posts: 1,269
Likes: 226
From: Cocoa FL
I just recently sold a 2010 F250 that had a turbo-diesel in it. The turbo was near the firewall but the heat hardly transferred into the cabin. They come with a full firewall insulation setup. I have been throwing around the idea of going to the junk yard and seeing if I can score some of the firewall insulation from one of those and retrofit it to my '80 - ??? 
