89 Iroc front air deflector
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Junior Member
Joined: Mar 2004
Posts: 54
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From: North Denver area
Car: 1989 Iroc-Z
Engine: 305 TPI
89 Iroc front air deflector
I just got a new front air deflector (part#14083929) but I have no clue how it goes on. Does anyone have a pic of this ? It is for my sons car and the original one is gone. The car is an '89 Iroc Z-28. I have an exploded view but it doesn't show how it is mounted.
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Joined: Feb 2004
Posts: 1,231
Likes: 1
From: Greenville, SC
Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
There should be 6 mounting holes for it just under the radiator and condenser on the radiator support. You're going to have to jack the car up to see the holes. Hope this helps!
Re: 89 Iroc front air deflector
Originally posted by NascarFool
I just got a new front air deflector (part#14083929) but I have no clue how it goes on. Does anyone have a pic of this ? It is for my sons car and the original one is gone. The car is an '89 Iroc Z-28. I have an exploded view but it doesn't show how it is mounted.
I just got a new front air deflector (part#14083929) but I have no clue how it goes on. Does anyone have a pic of this ? It is for my sons car and the original one is gone. The car is an '89 Iroc Z-28. I have an exploded view but it doesn't show how it is mounted.
They're called 'push screws' if I recall correctly. Somebody please step up and beat me down with a Rustang bumper if I'm giving this guy incorrect info; I've already screwed up once by telling someone else that they needed a bazillion push screws to hold the front lower valance to the bumper cover (when they actually needed a bazillion 10mm bolts)!
- 89_IROC
PS - Just to be a nitpicker, there was no 'IROC-Z28' for the '88-'90 models - the 'IROC-Z' was its own model, and the 'Z28' returned for the '91 model year
Last edited by 89_IROC_98U; Aug 9, 2004 at 10:02 PM.
Thread Starter
Junior Member
Joined: Mar 2004
Posts: 54
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From: North Denver area
Car: 1989 Iroc-Z
Engine: 305 TPI
Re: Re: 89 Iroc front air deflector
Originally posted by 89_IROC_98U
PS - Just to be a nitpicker, there was no 'IROC-Z28' for the '88-'90 models - the 'IROC-Z' was its own model, and the 'Z28' returned for the '91 model year
PS - Just to be a nitpicker, there was no 'IROC-Z28' for the '88-'90 models - the 'IROC-Z' was its own model, and the 'Z28' returned for the '91 model year
I looked under the frontend and I could not see anywhere that this thing would mount. It kinda looks like something is missing that this thing would mount on. I'll take more time to look at it after work today if it isn't raining. Originally posted by tom3
Interesting, the dash emblem on my 88 says Z28 with IROC Z just underneath in smaller letters.
Interesting, the dash emblem on my 88 says Z28 with IROC Z just underneath in smaller letters.
I found the fact that the Z28 model was dropped in favor of the IROC-Z from '88-'90 to be interesting information; if I'd known this several years ago when I bought my '89, I could've had it for next-to-nothing and simply replaced the blown transmission instead of shelling out $2500 after somebody else fixed it. The car had 16" IROC-Z wheels but it looked like a plain Z28 from a distance, so I passed it by. Live and learn, I guess
- 89_IROC
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Re: Re: Re: 89 Iroc front air deflector
Originally posted by NascarFool
Ok ok , it's an Iroc-Z you nitpicker.
I looked under the frontend and I could not see anywhere that this thing would mount. It kinda looks like something is missing that this thing would mount on. I'll take more time to look at it after work today if it isn't raining.
Ok ok , it's an Iroc-Z you nitpicker.
I looked under the frontend and I could not see anywhere that this thing would mount. It kinda looks like something is missing that this thing would mount on. I'll take more time to look at it after work today if it isn't raining.
I'll look under my car tomorrow morning and then I'll respond to this again if you haven't posted already. I hope I'm right about the plastic push screws which hold the air dam on; I'm going to feel pretty dumb if not since I already made that mistake with the lower front valance
One would think that this stuff would be fresh in my head after taking the entire front clip (and everything underneath) off a couple of weeks ago. Good thing I took lots of pictures for when I put it back together!
- 89_IROC
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Joined: Jan 2001
Posts: 1,244
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From: Kelowna, B.C.
Car: 89 Camaro RS
Engine: 305 TBI
Transmission: 700r4
Axle/Gears: 2.73
When I got my car it didn't have one.. I actually installed mine with stainless steel bolts & lock nuts..
it's not going anywhere..
it's not going anywhere.. Originally posted by urbanhunter44
Mine has six holes and it took (i think) 10mm bolts.
Mine has six holes and it took (i think) 10mm bolts.

This man is correct - it attaches with six 10mm bolts directly under the radiator. Look on your car and I'm sure that you'll find these 6 holes in that location. Let us know what you see.
- 89_IROC
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Joined: May 2004
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From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
Make sure you have the right kind of air dam! There are two kinds, the camaro ones, and the firebird ones.
The Firebird ones are slightly less effective on camaros due to their shorter height, and are difficult to fit on due to their pointed design.
I don't even know if the camaro ones will fit on firebirds, but that's really irrelevant.
Man, I keep wanting to attach everything with those push screws for some reason...maybe because the last few things I removed from the front and the rear WERE attached with push screws
Coincidentally, I have an air dam up for grabs now - I ordered a new one from the dealer this afternoon
On an unrelated note, the air filter cover (the "clam shell") has been discontinued, or I'd have ordered one of those as well
- 89_IROC
Coincidentally, I have an air dam up for grabs now - I ordered a new one from the dealer this afternoon

On an unrelated note, the air filter cover (the "clam shell") has been discontinued, or I'd have ordered one of those as well
- 89_IROC
Thread Starter
Junior Member
Joined: Mar 2004
Posts: 54
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From: North Denver area
Car: 1989 Iroc-Z
Engine: 305 TPI
I'm sure it's the right one. I got the part number off a Camaro only parts CD. I got the part from gmpartsdirect.com. I'll try to get a pic tonight after work, I've been too busy the past few days. As for the mounting bolts, I think those are 6mm bolts that have a 10mm hex head.
Originally posted by NascarFool
I crawled under the car and found the mounting holes this weekend. The deflector is mounted and now the car should run cooler.
I crawled under the car and found the mounting holes this weekend. The deflector is mounted and now the car should run cooler.

- 89_IROC
Thread Starter
Junior Member
Joined: Mar 2004
Posts: 54
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From: North Denver area
Car: 1989 Iroc-Z
Engine: 305 TPI
It's my sons car. He said it use to run around 230ºF and both rad fans always on. Now he says it hits 180ºF and only one fan cycles off/on.
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