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Clutch master cylinder support

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Old Sep 25, 2022 | 09:57 PM
  #1  
midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Clutch master cylinder support

Does anyone have a diagram of the clutch master cylinder support I need to make one for the new car that I'm swapping a manual into. I can definitely look at my old car but not for a while but I'd like to get it made ahead of time.

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Old Sep 26, 2022 | 04:15 AM
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Re: Clutch master cylinder support

Would like to know also.
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Old Sep 27, 2022 | 11:06 PM
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Car: '82 Recaro T/A, '71 Trans Am
Engine: 305CFI/455HO
Transmission: TH700R4/M22
Axle/Gears: 3.23/3.42
Re: Clutch master cylinder support

Kinda rough but should be enough to make a reinforcement plate.


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Old Sep 28, 2022 | 07:25 AM
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midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Clutch master cylinder support

Thanks helps a ton
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Old Sep 29, 2022 | 11:29 AM
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From: Louisville, KY
Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: Clutch master cylinder support

How much difference do these really make? Just curious. Were they only on the later years? I ask because it seems like for all my time being here I didn't hear about them and now I've seen several threads discussing them.
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Old Sep 29, 2022 | 01:36 PM
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Dens71TA's Avatar
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From: Midwest
Car: '82 Recaro T/A, '71 Trans Am
Engine: 305CFI/455HO
Transmission: TH700R4/M22
Axle/Gears: 3.23/3.42
Re: Clutch master cylinder support

Originally Posted by RedLeader289
How much difference do these really make? Just curious. Were they only on the later years? I ask because it seems like for all my time being here I didn't hear about them and now I've seen several threads discussing them.
It was used beginning in 1984 with the introduction of the hydraulic clutch on 3rd-gens. The firewall is made out of rather thin metal and the reinforcement plate prevents cracking around
where the clutch master cylinder is attached. There are also two bars that go from the pedal pivot bolt to the firewall for further support.
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Old Sep 29, 2022 | 03:49 PM
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From: Louisville, KY
Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: Clutch master cylinder support

Ok gotcha, yeah when I did my swap I thought it was fairly rigid due to the two support bars making a triangulated support. I guess every little extra bit helps though.
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Old Sep 29, 2022 | 10:53 PM
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midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Clutch master cylinder support

I am definitely going to be adding one to the new body no way I'm going through all this trouble to paint the damn thing and then have my firewall crack on a very clean chassis
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Old Oct 16, 2022 | 10:04 AM
  #9  
midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Clutch master cylinder support

Thanks for the help guys my friend and I made a new plate today and got it welded into the body.



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