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#1
01-03-2014, 04:48 PM
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Need help with P/N - Name ID
I pulled this part off of my 1972 Trans Am and need to replace it (obviously)! It is for the heater/AC system located near the firewall. Can anyone tell me the Part Number for this piece or perhaps the correct name? I looked through my Assembly manual and searched the "key" 71/72 Trans Am resto threads, but did not come across this part. Details: It is a "foam" flapper (8" long x 3.5" wide) affixed to a metal bracket (7.5" long x 3" wide) with 3 staples. The bracket has a mounting tab (3.5" x 1.5") that contains 3 drilled holes. Any insight would be appreciated.
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#2
01-03-2014, 05:01 PM
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Not sure of the correct name, but what it does is seal off the end of air intake plenum so the fresh/recirc flapper door can operate to supply (or cut off) fresh air to the aircon induction through the passenger footwell vent valve.
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Regards, Leigh Pontiacs I’ve owned…. 1960 Laurentian 283 1963 Laurentian 283 1976 Trans Am 400 1977 Trans Am 400 1951 Chieftain Flat head 6 1967 Firebird 400 convertible 1967 Firebird 400 coupe 1979 Trans Am 403 1971 Formula 455 (clone) 1969 Firebird 350 1968 Firebird 428 manual. Sydney, Australia |
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#3
01-03-2014, 05:21 PM
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Just off the top of my head....baffle?.....plenum divider?
__________________
 Eye Candy......garage band? https://www.youtube.com/watch?v=QUPcHxHRx3s Go full screen & turn it UP! |
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#4
01-03-2014, 06:32 PM
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Looks like a side shroud vacuum control baffle. part # 3998417.
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#5
01-03-2014, 06:44 PM
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Assembly sheet 1A2J-5. Number 3 (doesn't show picture of it).
Parts Manual picture (#13)... |
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#6
01-03-2014, 07:51 PM
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That's the one.
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#7
01-03-2014, 08:40 PM
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Guys - Thanks for all the input. With the Part Number, I was able to find it. It is listed as follows:
9.786 BAFFLE AIR CONDITIONING AIR INLET PLENUM 3998417 1970-72/ALL/SUP 3973721 Now the "hunt" begins! |
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#8
01-03-2014, 09:17 PM
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Just replaced mine with a good quality used part from Franks Pontiac Parts here in California.
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#9
01-03-2014, 09:51 PM
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West Coast GTO - I see Franks has one listed on their website. Was your purchase so recent that it may be the part listed (or do you think they have others)? Were you happy with your purchase from them? I have heard mixed reviews on their parts and doing business with them.
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#10
01-04-2014, 03:26 AM
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Part is the same till '80 last I knew, if that helps. Its non moving.
__________________
"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather |
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