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66 firewal insulation/carpet install question

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Old Mar 9, 2025 | 09:40 PM
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66 firewal insulation/carpet install question

Looking to install my firewall insulation so I can then begin installing heaterbox, pedals, wiring etc. My question is, can I install firewall insulation and then slide carpet up under it or does carpet need to be put down first? I just don't want to put everything in and then have to pull it back out to lay carpet. Thanks
 
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Old Mar 13, 2025 | 06:50 AM
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Rephrasing the question....How far up firewall does carpet go on 66 F100. Does it stop at floorplan/firewall seem or does it actually extend up higher onto firewall? Anyone??
 
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Old Mar 13, 2025 | 07:34 AM
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The carpet rises about an inch above where the gas pedal mounts. I would lay carpet first
 
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Old Mar 13, 2025 | 09:16 AM
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You can do them in either order. Easy to tuck the carpet under the 1 inch of the firewall insulation as you pull it into place. That's how they would have done it at the factory - although only certain trucks got carpet and all others got a rubber floor mat. Either way the firewall insulation was installed first.
 
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Old Mar 13, 2025 | 06:34 PM
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The carpet was one of the last things to go in my truck.
 
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Old Mar 14, 2025 | 11:24 AM
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I put the firewall pad in before anything and did everything else in the cab. Carpet and then seat was the last two things installed
 
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Old Mar 15, 2025 | 07:21 PM
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Thanks for the info - Finished Dash and firewall insulation today - Took forever to trim and line up firewall insulation.






 
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Old Mar 17, 2025 | 12:27 PM
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Hey 66, what firewall pad did you use?
 
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Old Mar 17, 2025 | 02:32 PM
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This is like the original cardboard with insulation on the back. needed to trim some to fit so holes lined up. also has the sewn in rubber on bottom


 
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Old Mar 17, 2025 | 02:35 PM
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Nice. Thank you!
 
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