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Rivets?

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Old May 28, 2018 | 08:58 AM
  #1  
knightinblackar's Avatar
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From: UK
Car: 1984 Firebird S/E
Engine: 1985 2.8 MPFI
Transmission: 1985 T5 5 speed manual
Axle/Gears: 3.42/4.03
Rivets?

Is there any reason ASC riveted the side rocker reinforcement and not spot welded them?

I would like facts as opposed to guesses on this one as I have to take it all off and put them back on once over repaired the floors and my family will be travelling in this car!

Thanks in advance!
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Old May 28, 2018 | 09:53 AM
  #2  
mmadden55's Avatar
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From: Houson
Car: 86 Firebird
Engine: 305 SBC
Transmission: 700 R4 TCI
Axle/Gears: 3.42
Re: Rivets?

Not that I know of I would weld them.
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Old May 28, 2018 | 10:59 AM
  #3  
knightinblackar's Avatar
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From: UK
Car: 1984 Firebird S/E
Engine: 1985 2.8 MPFI
Transmission: 1985 T5 5 speed manual
Axle/Gears: 3.42/4.03
Re: Rivets?

Originally Posted by mmadden55
Not that I know of I would weld them.
I’m wondering whether the frame needed to flex for some reason? In the original plans they’re rivets so it’s jot an aftermarket thing, it’s how they were built!

I was was planning to plug weldthem back on.
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Old May 28, 2018 | 11:03 AM
  #4  
mmadden55's Avatar
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From: Houson
Car: 86 Firebird
Engine: 305 SBC
Transmission: 700 R4 TCI
Axle/Gears: 3.42
Re: Rivets?

Sounds good to me.
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Old Jun 26, 2018 | 01:52 PM
  #5  
okfoz's Avatar
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Re: Rivets?

Cost & Speed of conversion was probably why they riveted them. Less welding, means less repainting, lower chance of factory fire etc..

I believe the channels are actually made from Aluminum, (I am not sure if you can weld aluminum to Steel) This was probably done to save weight. I have never checked them with a magnet tho.

John
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Old Jun 27, 2018 | 03:52 AM
  #6  
knightinblackar's Avatar
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Joined: May 2006
Posts: 264
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From: UK
Car: 1984 Firebird S/E
Engine: 1985 2.8 MPFI
Transmission: 1985 T5 5 speed manual
Axle/Gears: 3.42/4.03
Re: Rivets?

I can see that! Probably better to use the quickest low risk materials and fixings.

Theyre definitely all steel, everything is welded at the ends. But the rivets are aluminium.
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Old Jul 11, 2018 | 05:00 PM
  #7  
Tootie Pang's Avatar
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From: Los Angeles
Car: 1989 IROC Convertible
Engine: 350 TPI L98
Transmission: WC T5
Axle/Gears: 3.42
Re: Rivets?

I added the Spohn SFC kit for convertibles. Huge improvement in stiffness.
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Old Sep 27, 2018 | 01:06 PM
  #8  
knightinblackar's Avatar
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Joined: May 2006
Posts: 264
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From: UK
Car: 1984 Firebird S/E
Engine: 1985 2.8 MPFI
Transmission: 1985 T5 5 speed manual
Axle/Gears: 3.42/4.03
Re: Rivets?

Originally Posted by okfoz
Cost & Speed of conversion was probably why they riveted them. Less welding, means less repainting, lower chance of factory fire etc..

I believe the channels are actually made from Aluminum, (I am not sure if you can weld aluminum to Steel) This was probably done to save weight. I have never checked them with a magnet tho.

John
Nothing on the vert is aluminium except the filler piece for the front header panel and he rivets! Its all spot welded, seam welded and aluminium riveted.
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Old Oct 1, 2018 | 01:39 PM
  #9  
okfoz's Avatar
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Re: Rivets?

Originally Posted by knightinblackar
Nothing on the vert is aluminium except the filler piece for the front header panel and he rivets! Its all spot welded, seam welded and aluminium riveted.
Indeed you are correct, I looked at my 89 while on a lift, and it does appear that the frame connectors are indeed steel. The Rivets are aluminum...

John
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