Heater duct drivers side
Thread Starter
Intermediate
Joined: Feb 2017
Posts: 35
Likes: 0
From: Utah
Heater duct drivers side
My car was missing the some of the heater ducts when I got it. I bought some off of eBay last year but the drivers side seems to be a few inches short. Does anyone know if the ducts may be different lengths from 78 -82 I double checked my instal on the other section and everything looks correct. My only guess is that they may have changed lengths along the way and I bought or got sent the wrong duct.[ATTACH]would [ATTACH]would [/ATTACH][/ATTACH]
Race Director
Joined: Oct 2000
Posts: 12,655
Likes: 3,116
From: Shamong, NJ
Technically, that's a air conditioning duct, not a heater duct.
My 1980 and 1982 Corvette Parts Books show just one left hand AC duct for all 78-82 Corvettes, part number 14004949.
I can see that there is a part number molded into that duct, but I can't make it out. What is the part number? If it is 3949987, it's a 74-77 duct. I know it's not a 68-73 duct, because they have a round vent in the bottom of them.
My 1980 and 1982 Corvette Parts Books show just one left hand AC duct for all 78-82 Corvettes, part number 14004949.
I can see that there is a part number molded into that duct, but I can't make it out. What is the part number? If it is 3949987, it's a 74-77 duct. I know it's not a 68-73 duct, because they have a round vent in the bottom of them.
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
The distribution duct it attaches to may be mispositioned. It's not very well attached to begin with and prone to dislocation when installing the gauge pack and other ducts. You'll have to remove the gauge pack to see. While the gauge pack can be removed by itself it's easy to damage things. It's a lot more work but I still prefer to remove the parking brake cover and shifter console first. While in there, check the defroster duct behind the A/C plenum. I had to tape mine together with some aluminum duct tape.
Thread Starter
Intermediate
Joined: Feb 2017
Posts: 35
Likes: 0
From: Utah
Technically, that's a air conditioning duct, not a heater duct.
My 1980 and 1982 Corvette Parts Books show just one left hand AC duct for all 78-82 Corvettes, part number 14004949.
I can see that there is a part number molded into that duct, but I can't make it out. What is the part number? If it is 3949987, it's a 74-77 duct. I know it's not a 68-73 duct, because they have a round vent in the bottom of them.
My 1980 and 1982 Corvette Parts Books show just one left hand AC duct for all 78-82 Corvettes, part number 14004949.
I can see that there is a part number molded into that duct, but I can't make it out. What is the part number? If it is 3949987, it's a 74-77 duct. I know it's not a 68-73 duct, because they have a round vent in the bottom of them.
Racer
Joined: Mar 2016
Posts: 470
Likes: 31
From: Melbourne Victoria
Mines a 72 but done the same thing and came apart. I just got some double sided tape and put that on the inlet side and squeezed it together. You don't look like you need much out of it to get it to work.
Thread Starter
Intermediate
Joined: Feb 2017
Posts: 35
Likes: 0
From: Utah
The distribution duct it attaches to may be mispositioned. It's not very well attached to begin with and prone to dislocation when installing the gauge pack and other ducts. You'll have to remove the gauge pack to see. While the gauge pack can be removed by itself it's easy to damage things. It's a lot more work but I still prefer to remove the parking brake cover and shifter console first. While in there, check the defroster duct behind the A/C plenum. I had to tape mine together with some aluminum duct tape.
Thread Starter
Intermediate
Joined: Feb 2017
Posts: 35
Likes: 0
From: Utah
Thanks for the tip it is close worse case I may what for a cheap one to hit eBay and cut a chunk out of it to build an extension
Racer
Joined: Mar 2016
Posts: 470
Likes: 31
From: Melbourne Victoria
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