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rubber gromet in middle of top of roof

hoorders

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hoorders Enthusiast

hoorders

Posted
Posted

Hi everyone,

 

Can someone tell me what that rubber gromet looking thing is on the outside/top/centre of my roof......I have a 2000Z71.

 

I was checking it out yesterday and it seems to be getting britle.....I suppose thats just from the weather and time.

 

So, how do I change this thing??........is it just a vent of sorts and can I just pop it out or is there more to it?

 

Thanks............ :cheers:

pwall Senior Enthusiast

pwall

Posted
Posted

Could it be the spot wit the OnStar attenna would go if you had it?

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted

Sounds like where the wire would exit to connect to the emergency strobe/flasher that used to be mounted there.

J45p3r Enthusiast

J45p3r

Posted
Posted
Sounds like where the wire would exit to connect to the emergency strobe/flasher that used to be mounted there.

 

 

 

Yea, I'm thinking something similar. That's why I was wondering if he had the truck since it was new.

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted

Look for scuff marks from 4 strong circular magnets holding the flasher unit in place.

hoorders Enthusiast

hoorders

Posted
  • Author
Posted
This thing is centered front to back and side to side? Like dead center of the roof? Have you owned the truck since new?

 

 

 

Yup...............its dead centre of the roof....................and no I have not owned it since new.

 

So im assuming no one else has this on their trucks?? :cheers:

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted

Correct-a-mundo, Kemosabe. My ext cab roof was smooth as a baby's butt before I drilled a hole in it to wire up my emergency strobe/flasher.

hoorders Enthusiast

hoorders

Posted
  • Author
Posted
Correct-a-mundo, Kemosabe.  My ext cab roof was smooth as a baby's butt before I drilled a hole in it to wire up my emergency strobe/flasher.

 

 

 

Well that just bites then................I guess someone before I owned it had somehting wired up there..............now I just have to figure out where to find another rubber gromet to replace the one thats there before it deteriorates bad enough to leak.

 

Thanks for everyones responses!!............... :cheers:

ZZebes Senior Enthusiast

ZZebes

Posted
Posted

If you have the extra funds than have a decent bodyshop weld up a patch and paint it since no one sees the roof anyways

firefighteremt3100 Enthusiast

firefighteremt3100

Posted
Posted
This thing is centered front to back and side to side? Like dead center of the roof? Have you owned the truck since new?

 

 

 

Yup...............its dead centre of the roof....................and no I have not owned it since new.

 

So im assuming no one else has this on their trucks?? :cheers:

 

 

 

 

If there is a rubber grommet, its more probable a "plug" to fill in the hole. I have one on my truck, but I did put it there for a scanner antenna. A lot of agencies (Police, Fire, EMS, etc) will mount radio/Scanner antennas up there because the reception is a LOT better. You will see that plug on a lot of squad cars when departments get rid of them and they go to auction. It will probably get brittle over time because of the sun. As with any rubber product, it will unfortunately over time dry rot if not taken care of. I have not tried to use some sort of product to soften and protect it. You may want to try that first. If not, I believe they just pop out. You should be able to find that type of plug at any hardware store. Maybe pull it out, and tape it up temporarily and take the plug with you to prevent stuff from falling in there. Hope this info helps.

ricko2 Enthusiast

ricko2

Posted
Posted

Could get a plug and play satelite radio deal, and use that hole to run the antenna, seal it with some silicone.

hoorders Enthusiast

hoorders

Posted
  • Author
Posted
This thing is centered front to back and side to side? Like dead center of the roof? Have you owned the truck since new?

 

 

 

Yup...............its dead centre of the roof....................and no I have not owned it since new.

 

So im assuming no one else has this on their trucks?? :cheers:

 

 

 

 

If there is a rubber grommet, its more probable a "plug" to fill in the hole. I have one on my truck, but I did put it there for a scanner antenna. A lot of agencies (Police, Fire, EMS, etc) will mount radio/Scanner antennas up there because the reception is a LOT better. You will see that plug on a lot of squad cars when departments get rid of them and they go to auction. It will probably get brittle over time because of the sun. As with any rubber product, it will unfortunately over time dry rot if not taken care of. I have not tried to use some sort of product to soften and protect it. You may want to try that first. If not, I believe they just pop out. You should be able to find that type of plug at any hardware store. Maybe pull it out, and tape it up temporarily and take the plug with you to prevent stuff from falling in there. Hope this info helps.

 

 

 

 

 

I think thats what I will do...............I would rather put another rubber gromet in it just in case some day I mount something there....then I won't need to drill a hole.

 

Thanks.................. :D

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