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Please help explain these cracks.

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Old Sep 6, 2019 | 04:15 PM
  #1  
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Please help explain these cracks.

Hi all. I've posted many posts regarding my car, and appreciate all the knowledge the users and this site provides. I've come across a few more things of concern and I being a novice have never seen before... as i tear apart this 86 camaroI, I noticed a few cracks that I myself cannot explain. I'm hoping someone has seen these before and can advise me if this is fixable or is this car scrap metal! The first pics are where the gear shift boot come up thru the floor and attaches to the gear boot, the other one is the top rear drivers side where the T roof attaches. Thoughts? Is this car done? Something to note there appears to be no damage to this car in the front or underneath. It has a clear title with no claims against it.




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Old Sep 6, 2019 | 07:32 PM
  #2  
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Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Please help explain these cracks.

Just because you have a clean history and or the underside doesn't appear to show damage, it still could have been rear ended or went up a curb, just a guess
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Old Sep 6, 2019 | 07:40 PM
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Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Please help explain these cracks.

Not good, but if the rest of the unibody is good(examine it on a lift) I'd have it welded and gusseted and go on. Couple small gussets.
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Old Sep 6, 2019 | 08:00 PM
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Re: Please help explain these cracks.

I'd chalk it up to being a wet noodle t-top car, but I could be wrong
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Old Sep 6, 2019 | 08:01 PM
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Re: Please help explain these cracks.

Originally Posted by Lakerman62
Just because you have a clean history and or the underside doesn't appear to show damage, it still could have been rear ended or went up a curb, just a guess
True bro... I'm hoping for the best here.
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Old Sep 6, 2019 | 10:00 PM
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Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Please help explain these cracks.

Body flex basically, pretty common on these cars.Especially the b-pillar at the t-top.Even HT crack there, sometimes.Drill a small hole if front of the crack to keep it from getting longer.Then weld them up.The metal kinda looks a little tweaked at the shifter, but not 100% on that.Definitely not scrap material.
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Old Sep 7, 2019 | 08:50 AM
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Re: Please help explain these cracks.

The shifter area does look a little tweaked. I can compare to my car later and see what it looks like since my carpet is out. It may just look like that in the pic though.
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Old Sep 7, 2019 | 09:39 AM
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Re: Please help explain these cracks.

Originally Posted by 84 1LE
Body flex basically, pretty common on these cars.Especially the b-pillar at the t-top.Even HT crack there, sometimes.Drill a small hole if front of the crack to keep it from getting longer.Then weld them up.The metal kinda looks a little tweaked at the shifter, but not 100% on that.Definitely not scrap material.
You mean drill a small hole at the roof edge on the b pillar where the crack kinda goes or on the gear shifter or all 3? That hole would then be filled with body filler?
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Old Sep 7, 2019 | 09:42 AM
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Re: Please help explain these cracks.

Originally Posted by Billgluckman
The shifter area does look a little tweaked. I can compare to my car later and see what it looks like since my carpet is out. It may just look like that in the pic though.
Thanks What are you guys referring to the term tweaked? Is it Torque from the transmission? I realize were just guessing here. Just wondering if it's a safety issue.
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Old Sep 7, 2019 | 09:44 AM
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Re: Please help explain these cracks.

Originally Posted by mikeceli
Not good, but if the rest of the unibody is good(examine it on a lift) I'd have it welded and gusseted and go on. Couple small gussets.
Gusseted? You mean small holes like another member has suggested?
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Old Sep 7, 2019 | 02:56 PM
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Car: 92 Firebird
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Axle/Gears: 3.45 9 Bolt
Re: Please help explain these cracks.

Originally Posted by Dllblack
You mean drill a small hole at the roof edge on the b pillar where the crack kinda goes or on the gear shifter or all 3? That hole would then be filled with body filler?
No, the hole from the drill and the crack would need to be WELDED
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Old Sep 7, 2019 | 05:09 PM
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Re: Please help explain these cracks.



Man it looks like your trans tunnel is dented/tweaked where that crack is. Like I said it might just be your pic though
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Old Sep 7, 2019 | 05:41 PM
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Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Please help explain these cracks.

Originally Posted by Dllblack
Gusseted? You mean small holes like another member has suggested?

Drill end of crack, weld entire crack. Gusset is a piece of steel, welded in place on top of the crack, to strengthen the base metal. Maybe overkill, but quick and easy, if you have room.
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Old Sep 7, 2019 | 07:21 PM
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Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Please help explain these cracks.

Drilling a hole at the end of a migrating crack helps to stop the crack from going any further. Fill hole and the rest of the crack with a good weld.
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Old Sep 7, 2019 | 07:27 PM
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From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Please help explain these cracks.

Your car in a former life.

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Old Sep 7, 2019 | 11:05 PM
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Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Please help explain these cracks.

Originally Posted by Dllblack
You mean drill a small hole at the roof edge on the b pillar where the crack kinda goes or on the gear shifter or all 3? That hole would then be filled with body filler?
As mentioned, at the end of the crack, all three (or however many you find).Then weld them,NO bondo!
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Old Sep 8, 2019 | 11:55 AM
  #17  
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Re: Please help explain these cracks.

The crack will keep propagating even if you weld it up, so you need to send the crack into a dead end cul de sac where it can't run any further. That's the purpose of the holes.
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Old Sep 13, 2019 | 06:11 PM
  #18  
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From: Syracuse NY
Car: 84 Z-28
Engine: 305 HO
Transmission: r-700
Axle/Gears: 3:73
Re: Please help explain these cracks.

What about the famous center dash face crack?

Heres another thread with pics:
https://www.thirdgen.org/forums/inte...or-issues.html


Last edited by sonjaab; Sep 13, 2019 at 06:14 PM.
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Old Sep 13, 2019 | 06:53 PM
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Re: Please help explain these cracks.

^^ mines like that. I like these cars but when someone calls them junk I can’t defend them.
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Old Sep 13, 2019 | 06:57 PM
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Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Please help explain these cracks.

The cars or the person saying that? My 84 was like that too, but it never went past that first bend in 28 years.
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Old Sep 14, 2019 | 07:26 AM
  #21  
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Re: Please help explain these cracks.

I can’t defend the cars. I like the cars, but man they were put together cheap. Same thing for 4th gens. I just wish they would have made the t top and convertible cars with factory subframe connectors and used better/different material for the dash and consoles. I love the look of the 3rd gen interior but I’m always being careful not to break something.
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Old Sep 14, 2019 | 12:34 PM
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From: Oyth
Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Please help explain these cracks.

Never understood why bother w/ uni-bodies myself. Their not really any lighter than full frame cars and was the whole point mostly. Plastics and vinyl, well that was the technology of the time unfortunately.
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