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wrong firewall grommet!

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Old May 9, 2012 | 09:46 PM
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Default wrong firewall grommet!

So I ordered a 3 hole firewall grommet to replace the grommet that the vacuum hoses pass through for the Hvac system and it turned out to be the one for the headlight's vacuum hoses. I didnt realize that they were different sizes. So my problem is I cant seem to find this grommet and it has to be replaced. The car is a 79. Any info would be great. Thanks!
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Old May 9, 2012 | 11:02 PM
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drill it out?
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Old May 10, 2012 | 02:15 AM
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Originally Posted by oldalaskaman
drill it out?
I would if i could but its the other way around. the hole is too big. so big the grommet goes right through the hole.
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Old May 10, 2012 | 08:09 AM
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check with wilcox, he usually has a pretty good idea where to get things and he's on here all the time.
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Old May 10, 2012 | 08:11 AM
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I hate when your grommet won't fit in the hole.......size does matter.
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Old May 10, 2012 | 08:20 AM
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Originally Posted by 73Corvette
I hate when your grommet won't fit in the hole.......size does matter.
ur sik
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Old May 10, 2012 | 11:19 AM
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The assembly instruction manaul (AIM) shows the installation of the grommet and lists the GM part number.

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Old May 10, 2012 | 09:23 PM
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I assume the grommet you need is the one in the picture below with Green, Black and White hoses running through it. I hate to say it but it was actually made to the hoses before installation and it is not sold separately or available.

I may have a used one.. Actually I'm sure I have a good used one if this is indeed what you need. You'll have to give Norm or Tommy a call tomorrow.. 812-288-7103... and when I come in I'll double check and have one of them call you back. I will not be in until late noon.


Last edited by Willcox Corvette; May 10, 2012 at 09:27 PM.
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Old May 10, 2012 | 10:04 PM
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Originally Posted by Willcox Corvette
I assume the grommet you need is the one in the picture below with Green, Black and White hoses running through it. I hate to say it but it was actually made to the hoses before installation and it is not sold separately or available.

I may have a used one.. Actually I'm sure I have a good used one if this is indeed what you need. You'll have to give Norm or Tommy a call tomorrow.. 812-288-7103... and when I come in I'll double check and have one of them call you back. I will not be in until late noon.

That is what I need!! I ordered the vacuum Hvac kit through you and 2 of the grommets that ended up being for the headlights. The only issue I see is that the new hoses are so much bigger around than what passes through one of those. So do you just slide the new hose over the old ones at the grommet?
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Old May 13, 2012 | 04:39 PM
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two ways.. You can cut the hose and attach it to a used grommet, or you can take a used grommet, remove the old hose sections, enlarge the holes and then feed the new one through.

I'm not sure if you called or not, I was detained Thursday and Friday but I do have a grommet. I did check that. I'll talk to Norm and Tommy on Monday when I arrive.

Willcox
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