please can anybody help me with info on the tonneau cover
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From: mo city tx
Car: 91 rs vert
Engine: 305 tbi
please can anybody help me with info on the tonneau cover
im not sure how to explain it but i need some help. i got a 91 rs vert theres 2 things needed to drop the top 1. the tonneau switch and 2. the release lever. the problem is the release lever. some piece broke off and i dont know how it looked so i dont know what to do to fix it. not the release lever itself but the part that it conects to under the cover where the back of the hood attaches to it. does anybody have a pic of this or can take a pic of it to show me what it looks like? i hope i explained myself enough for yall to be able to understand me





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From: jackson new jersey
Car: 1991 camaro vert
Engine: ls1 soon
Transmission: t56 soon
Axle/Gears: moser 12bolt 4.10 soon!
Re: please can anybody help me with info on the tonneau cover
are u talking about the release lever that lets the tonneau come up or the release that lets the roof come up off the tonneau. some pics would be helpfull to see what your talking about exactly
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Joined: Jul 2009
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From: south of sa tx
Car: 88 iroc vert undergoing resto
Engine: 5.0 tpi
Transmission: beefy 700r4 rdeglcltch vetserv t/go
Axle/Gears: g92 b/w
Re: please can anybody help me with info on the tonneau cover
i belive what he is talking about is the wire that comes from the handle that attaches to the key shaped thing under the tonneau if you were to fold the back seat and gently turn the little arm that has a hole where the cable was conected the back of the top will pop up the manual realease cables will lift the tonneau after that if in tact my solenoids stopped working before and i found that the saftey switch that doesn't allow the tonneau to open if the trunk is comes unplugged maybe check that after u check middle switch for power in the trunk below the lift motor behind courtseylight it is a white connector if i remember there is also a wiring diagrahm on here somewhere for all of it
reading ur question again mine just has the wire looping through the little hole in the arm but it's an 88 the weird key shaped thing slides in perpindicular to the arm i believe the key thing is what acually holds top down kinda like a cam lock type of thing for the love of camera i need one bad got alittle carried away above srry
reading ur question again mine just has the wire looping through the little hole in the arm but it's an 88 the weird key shaped thing slides in perpindicular to the arm i believe the key thing is what acually holds top down kinda like a cam lock type of thing for the love of camera i need one bad got alittle carried away above srry
Last edited by tomclayborn; Jul 30, 2009 at 01:28 PM.
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: please can anybody help me with info on the tonneau cover
Here you go. Here's mine . . .


Note; for those with older ASC a rod system was used instead of the cable style. The set-up was slightly different but the principal is the same.


Note; for those with older ASC a rod system was used instead of the cable style. The set-up was slightly different but the principal is the same.
Last edited by Iroctopless; Jul 30, 2009 at 07:30 PM.
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From: mo city tx
Car: 91 rs vert
Engine: 305 tbi
Re: please can anybody help me with info on the tonneau cover


thats exactly what i needed! the end of the cable broke off the part that attaches to the long bar with 3 holes and i didnt know how it all went.
i wanted to put more thank yous but im only allowed 5 thank you!

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From: Lewiston, ME
Car: '90 RS Convertible
Engine: 305 TBI
Transmission: 700R4
Re: please can anybody help me with info on the tonneau cover
iroctopless - Thanks for posting these photos - When I bought my 'vert last Summer, the latch mechanism was a bunch of parts scattered in the trunk. I found this site, and your pictures, which I printed up and took straight down into the garage. Fixing the latch then took about five minutes. This is a great site.
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Supreme Member
Joined: Jul 2006
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: please can anybody help me with info on the tonneau cover
Awesome! It's great to keep us fellow vert owners cruise'n in style!
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Joined: Jul 2009
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From: south of sa tx
Car: 88 iroc vert undergoing resto
Engine: 5.0 tpi
Transmission: beefy 700r4 rdeglcltch vetserv t/go
Axle/Gears: g92 b/w
Re: please can anybody help me with info on the tonneau cover
now i even know how mine is supposed to go good deal i head to get a new realease cable neway as the handle is ripped off mine
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Joined: Jan 2008
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From: close to Wichita Kansas
Car: '91 RS CP now is the son's driver
Engine: CP =3.1, will get V-8 maybe someday
Transmission: stock
Axle/Gears: 3.42 posi W/ disks
Re: please can anybody help me with info on the tonneau cover
iroctopless - Thanks for posting these photos - When I bought my 'vert last Summer, the latch mechanism was a bunch of parts scattered in the trunk. I found this site, and your pictures, which I printed up and took straight down into the garage. Fixing the latch then took about five minutes. This is a great site.
ditto what he said

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Joined: May 2005
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From: Northern Kentucky
Car: 91' RS Convertible
Engine: 305 TBI
Transmission: 700R4
Re: please can anybody help me with info on the tonneau cover
Thanks for the pics also. I have took my assembly apart over 3 years ago and forgot how to put it back together. Its not like we can go to our neighbors and look at their car. LOL I love and hate these oddball cars.
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From: Abu Dhabi, UAE
Car: 1991 Camaro Z/28 Convertible
Engine: LB9 305
Transmission: A4
Axle/Gears: Stock
Re: please can anybody help me with info on the tonneau cover
On a related note, when I open the tonneau cover these days it doesn't support itself and stay open any more, I have to hold it.
Can anyone shed light on what I can adjust or replace to make it stay open?
Thanks
Bungle
Can anyone shed light on what I can adjust or replace to make it stay open?
Thanks
Bungle
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: please can anybody help me with info on the tonneau cover
The cover should stay up by means of two torsion bars. You can see them criss-crossing near the bottom of my pic . . .

They are a fairly bullet-proof way of making a "spring" to keep the cover up. The only two things I can think of that would make it fail is if one of the bars should break (unlikely) or if one of the ends became unfastened (more likely). They provide lift because one end of each bar is secured to the cover and the other end to the body of the car. The tension (twist) on the bars is greatest with the cover down, thus they naturally want to hold the cover in the up position.
Check the torsion bars and make sure the ends are secure where they should be. They retain their spring-rate pretty good over time and don't normally just fail. Is it possible that a foreign object may have dislodged one of the ends?

They are a fairly bullet-proof way of making a "spring" to keep the cover up. The only two things I can think of that would make it fail is if one of the bars should break (unlikely) or if one of the ends became unfastened (more likely). They provide lift because one end of each bar is secured to the cover and the other end to the body of the car. The tension (twist) on the bars is greatest with the cover down, thus they naturally want to hold the cover in the up position.
Check the torsion bars and make sure the ends are secure where they should be. They retain their spring-rate pretty good over time and don't normally just fail. Is it possible that a foreign object may have dislodged one of the ends?
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From: Abu Dhabi, UAE
Car: 1991 Camaro Z/28 Convertible
Engine: LB9 305
Transmission: A4
Axle/Gears: Stock
Re: please can anybody help me with info on the tonneau cover
Iroctopless.. thanks for that will check the condition of the bars. They haven't failed, as in the cover slams down, rather they have become noticably weaker in holding the cover up.
I'll post what i find.
I'll post what i find.
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Joined: Jan 2006
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From: Abu Dhabi, UAE
Car: 1991 Camaro Z/28 Convertible
Engine: LB9 305
Transmission: A4
Axle/Gears: Stock
Re: please can anybody help me with info on the tonneau cover
Ok had a look at the torsion bars and while they are securely in place, they appear to have been zip-tied together.. sure this must be a bad thing...
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: please can anybody help me with info on the tonneau cover
That does make a person go 
Have you tried removing them to see exactly why they might be there?

Have you tried removing them to see exactly why they might be there?
Joined: Dec 2008
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From: Chicago
Car: 65 SS Impala,86vertZ28,88vertIrocZ
Engine: Stock 305 TPI
Transmission: 700R4 Automatic
Axle/Gears: Stock
Re: please can anybody help me with info on the tonneau cover
Does anyone have a tonneau latch system like this?? Its from my 88 Iroc vert.
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Joined: Jul 2006
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: please can anybody help me with info on the tonneau cover
You have the earlier rod type system (missing a few parts). ASC later replaced it with a cable operated system.

Here's a good link with more info . . .
https://www.thirdgen.org/forums/conv...eau-cover.html

Here's a good link with more info . . .
https://www.thirdgen.org/forums/conv...eau-cover.html
Last edited by Iroctopless; Feb 14, 2010 at 01:59 PM. Reason: Added link.
Joined: Dec 2008
Posts: 104
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From: Chicago
Car: 65 SS Impala,86vertZ28,88vertIrocZ
Engine: Stock 305 TPI
Transmission: 700R4 Automatic
Axle/Gears: Stock
Re: please can anybody help me with info on the tonneau cover
You have the earlier rod type system (missing a few parts). ASC later replaced it with a cable operated system.

Here's a good link with more info . . .
https://www.thirdgen.org/forums/conv...eau-cover.html

Here's a good link with more info . . .
https://www.thirdgen.org/forums/conv...eau-cover.html
Joined: Dec 2008
Posts: 104
Likes: 0
From: Chicago
Car: 65 SS Impala,86vertZ28,88vertIrocZ
Engine: Stock 305 TPI
Transmission: 700R4 Automatic
Axle/Gears: Stock
Re: please can anybody help me with info on the tonneau cover
I really appreciate all the info received from this thread. I was able to fabricate the cable system on my 88's tonneau cover. I totally took out the remaining linkage of the rod system, and implemented the cable in its place. The whole setup was rather easy seeing as i had all the parts necessary to make it work from a spare 91 tonneau i had. Here are the results. Thanks again to all who contributed.
Re: please can anybody help me with info on the tonneau cover
That pic looks like you are missing the return spring on the latch?It runs from the hole in th eend of the arm back to the base to bring the latch back to the resting position.
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Joined: Jul 2006
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From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: please can anybody help me with info on the tonneau cover
Part of the older rod linkage system . . .

Or for the cable system . . .
Or some have even modded the lever to add the 2nd hole . . .

But no springs.
My latch works fine and has no issues without it.
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