Underside of vert top
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From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
Underside of vert top
What should be on the underside of the vert top? Should it be rails and stuff. Looks like a sizzor gate. Should something be covering this? I am looking at getting a very rough vert and have never seen one. Also how do you open the top? I mean the back part.
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From: Minnesota
Car: 89 IROC Z28 Vert
Engine: 305 TPI
Re: Underside of vert top
To open the back there is a latch in the back above the speaker. just pull it toward the front of the car. and i'm pretty sure the newer verts had headlines, from 90 on maybe, but im just guessing cause i have an 89 with no headliner
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Joined: Aug 2008
Posts: 163
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From: Iowa
Car: 1991 Z28 Convertible
Engine: 305 tpi
Transmission: 700 r4 Auto
Re: Underside of vert top
My 91 has a headliner. If you get a new top do you have to keep the headliner or do the new vert tops have them? Ya, look for a lever on the inside of the tonneau cover on the driver side in the back. These are often broken. I have seen some verts where you have to fold the seats down and turn a pin underneath the tonneau cover to open in. There is also a electrical switch, generally on the console in between the window switches that pops the tonneau cover. Later models, I think 92 had then in the same spot as the release of the top in the back.
Joined: Sep 2002
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From: Melbourne Australia but from South Carolina
Car: 1991 Trans Am convertible
Engine: 305 TPI
Transmission: Auto
Re: Underside of vert top
You can buy a headliner for the 91-92 verts. But, you can use your old one if its in good condition. I just ordered a new top for my 91 with glass in the rear.
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From: Somewhere around the South Side of Chicago just crusin' in one of the Niteriders
Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Joined: Sep 2002
Posts: 1,099
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From: Melbourne Australia but from South Carolina
Car: 1991 Trans Am convertible
Engine: 305 TPI
Transmission: Auto
Re: Underside of vert top
As I understand, if it did not come with a headliner you cannot add one. Dont remember where I read it though.
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: Underside of vert top
my 92 has a healiner. if the frame is similar on 89 and lower you could add a headliner.
there are a few pieces of metal that screw in that hold the headliner. I think I have pics. ill look and post em later.
there are a few pieces of metal that screw in that hold the headliner. I think I have pics. ill look and post em later.
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Thread Starter
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Joined: Oct 2004
Posts: 379
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From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
Re: Underside of vert top
That would be great, I look forward to see what I can do to improve the look.
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Joined: Oct 2004
Posts: 379
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From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
Re: Underside of vert top
Alright I see the hole but their is not handle in the hole, so now what?
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From: Somewhere around the South Side of Chicago just crusin' in one of the Niteriders
Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
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From: New Zealand
Car: 89 Iroc-Z Ragtop, 2012 Toyota Hilux
Engine: 305ci V8 TPI
Transmission: Both Auto's(Wife can't drive stick)
Re: Underside of vert top
Pop the trunk & you can look where the roof goes and just turn the lever.
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: Underside of vert top
It would look like this . . .



Older verts are rod operated. I believe from '88up they are cable like these pics of my '89. Either way the all work under the same principals. If you can't get it to open from the pull lever, then you might be able to just grab it by hand as Tonkatoy mentioned.
DO NOT pull the cotter type pin out! Just rotate it by turning the lever. This releases the roof pin. You might need to push the roof pin up when the lever is turned, or have someone lift the roof slightly to put a gentle pressure upward. It will then pop up.
Good luck.
PS; regarding the roof headliner. My '89 doesn't have one (to old by a year), but I don't miss it. I only ride my car when I can have the roof down, so I don't even notice I don't have one!



Older verts are rod operated. I believe from '88up they are cable like these pics of my '89. Either way the all work under the same principals. If you can't get it to open from the pull lever, then you might be able to just grab it by hand as Tonkatoy mentioned.
DO NOT pull the cotter type pin out! Just rotate it by turning the lever. This releases the roof pin. You might need to push the roof pin up when the lever is turned, or have someone lift the roof slightly to put a gentle pressure upward. It will then pop up.
Good luck.
PS; regarding the roof headliner. My '89 doesn't have one (to old by a year), but I don't miss it. I only ride my car when I can have the roof down, so I don't even notice I don't have one!
Last edited by Iroctopless; Nov 1, 2009 at 02:15 PM.
Thread Starter
Member
Joined: Oct 2004
Posts: 379
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From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
Re: Underside of vert top
That what I was getting ready to ask for, some pics. Thanks. Everything was missing from the underside of the cover, all it has is the stud that I poped open with a screw drive. I found all the parts and now I can see where they all go.
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From: Miami, FL
Car: 1988 IROC Convertible
Engine: 305 TPI
Transmission: Auto
Re: Underside of vert top
I'd love to see those pics. I've been trying to figure out if a headliner can be added to older verts. Like Yankee, I believe I read somewhere on the board that it can't be done but I can't find it and IIRC it was more an opinion than a statement. Maybe Lon can chime in since I'm pretty sure he knows the differences between older and newer frames.
Thread Starter
Member
Joined: Oct 2004
Posts: 379
Likes: 0
From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
Re: Underside of vert top
I'd love to see those pics. I've been trying to figure out if a headliner can be added to older verts. Like Yankee, I believe I read somewhere on the board that it can't be done but I can't find it and IIRC it was more an opinion than a statement. Maybe Lon can chime in since I'm pretty sure he knows the differences between older and newer frames.
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Joined: Nov 2002
Posts: 316
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From: Miami, FL
Car: 1988 IROC Convertible
Engine: 305 TPI
Transmission: Auto
Re: Underside of vert top
http://www.classicindustries.com/camaro/RCH91.html
I found this thread:
https://www.thirdgen.org/forums/conv...adliner-s.html
with the attached pics. It looks like the headliner loops into the frame bows and tucks under the trim piece at bow 1. I wonder how the loops work since there are also loops on the actual top material. Also, the pics don't show the rear so I can't tell how it goes in the back. I guess it probably ends in another loop. Also, from what I've been able to gather, the only difference between the early and late frames, is that the early frames are a couple inches narrower. So probably, a little upholstery work will get these headliner to work on the earlier models.
Last edited by galletti; Nov 2, 2009 at 06:54 AM.
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