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Author Topic: Duct part  (Read 4584 times)

Offline MY1978

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  • Just a girl and her truck since 1978
Duct part
« on: March 11, 2021, 08:49:43 am »
Hello all,

I am in search for a part.  I have not been able to find the "foot cooler" that is part of the left distribution duct by any search on internet or Ebay.  GM manual lists it, but I am unable to find it for sale anywhere.  Any ideas?  My next check is my favorite bone yard. 
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Offline ehjorten

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Re: Duct part
« Reply #1 on: March 11, 2021, 09:21:50 am »
I bought that assembly from the company that shall not be named, but it was a few years ago. Looking now, I don't see it. Perhaps call them an ask?
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline MY1978

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Re: Duct part
« Reply #2 on: March 11, 2021, 10:55:30 am »
okay thanks, but what company should I call?  That picture is from the 1978 Chevrolet service manual.

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Offline ehjorten

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Re: Duct part
« Reply #3 on: March 11, 2021, 03:49:59 pm »
Can't say the name here or it will get deleted. I looked at all of the parts suppliers that I know for our trucks along with this site's online store and I cannot find it now. It was available at one point. I got one from a place that has a three letter acronym followed by "truck". You might try EBay or look to local recyclers.

I will say this...the diverter doesn't actually work very well. I have rebuilt the HVAC units in both of my '77 K20 and '91 V3500 and it doesn't actually blow much air to the driver's feet regardless of fan setting.
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline blazer74

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Duct part
« Reply #4 on: March 11, 2021, 10:59:13 pm »
Search 3906004 on EBay. Couple of used assy.
Also new pieces to put one together except for the retainer(spring) and screw.

3906004.    Adapter
3906003.    Felt
3906002.    Deflector
3146637.     Retainer
#8-18x3/8.  Screw.
« Last Edit: March 12, 2021, 06:37:33 pm by blazer74 »
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Offline MY1978

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Re: Duct part
« Reply #5 on: March 12, 2021, 02:05:58 pm »
Wow!!!  Thanks.  I have looked and looked on Ebay and didn't find anything.
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