Ground bolt

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Jun 11, 2015 | 08:35 AM

davekp78

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Melting Slicks

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From: merritt island fl

C1 of Year Finalist (stock) 2019

2016 C1 of the Year Finalist

2015 C2 of the Year Finalist

Ground bolt

What's the size (diameter&pitch) of the ground bolts on the drivers side frame under the hood. The markings are "10" and 4 dots. Head size is 13mm.

Jun 11, 2015 | 06:05 PM

Theta

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From: Saint Louis MO

St. Jude Donor '14-'15

Are you talking about the ones holding the ground straps toward the mid to front of the vehicle on the driver's side?

Jun 11, 2015 | 07:16 PM

davekp78

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Melting Slicks

Joined: Sep 2005

Posts: 2,670

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From: merritt island fl

C1 of Year Finalist (stock) 2019

2016 C1 of the Year Finalist

2015 C2 of the Year Finalist

Quote:

Originally Posted by Theta

Are you talking about the ones holding the ground straps toward the mid to front of the vehicle on the driver's side?

Yes- but I pulled one and measured it. I got 8mm dia x 1.25mm pitch.
But they are a thread distorting type- not a plain metric bolt.

Jun 11, 2015 | 07:32 PM

Theta

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Joined: Jan 2006

Posts: 4,761

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From: Saint Louis MO

St. Jude Donor '14-'15

That is correct - the official description of those bolts (GM# 11570961) is:

BOLT, HEX HD W/FL WA, M8X1.25X25, 13 THD, 18.5 OD, GMW15170 STEEL, GMW320

Apr 14, 2019 | 07:18 PM

Ruderegime

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Joined: Apr 2018

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What's the part number on the grounding Bolt passenger side by the alternator?
Sorry for the double post

Last edited by Ruderegime; Apr 14, 2019 at 07:18 PM.

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