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Alternator Bolt Size

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Old Jul 27, 2021 | 10:44 AM
  #1  
lukin's Avatar
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Alternator Bolt Size

Looking for the bottom long alternator mounting bolt size so I can order a new one. The one I have ended up snapping off in the block of the 305. Any help is appreciated.


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Old Jul 27, 2021 | 07:49 PM
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From: WA
Car: 1989 IROC-Z
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: BW 9 Bolt / 2.77 Posi
Re: Alternator Bolt Size

You need a digital caliper (with fractional inches) and a thread pitch gauge.
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Old Jul 28, 2021 | 10:16 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: Alternator Bolt Size

https://www.thirdgen.org/forums/tech...bolt-size.html
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