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Missing nuts..... giggity

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Old Jul 25, 2017 | 03:19 PM
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Default Missing nuts..... giggity

While inspecting why I have differential fluid on my garage floor I found 2 missing bolts. Looks like they attach the differential to the subframe. Anyone know what size nuts these should be?

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Old Jul 25, 2017 | 03:39 PM
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The nut that holds the master cylinder reservoir to the booster is the same size. Lucky right? Off to Home Depot to get the actual size and some replacements. Anyone know the torque spec for these things?
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Old Jul 25, 2017 | 06:31 PM
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It's a M10 1.50 for future reference
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Old Jul 25, 2017 | 07:01 PM
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Maybe your wife has your nuts in a jar somewhere?

Hey, with a user name like Dark Sarcasm, you're gonna get comments like these!
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Old Jul 25, 2017 | 07:17 PM
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Originally Posted by tupeloC5
Maybe your wife has your nuts in a jar somewhere?

Hey, with a user name like Dark Sarcasm, you're gonna get comments like these!
She lets me see them every once in a while to make sure they're okay.
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Old Jul 25, 2017 | 09:51 PM
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I'm wondering if theres some kind of bushing or washer that goes there too. Looks like there are marks there from something bigger than a nut. Were you having any noises or anything like that while driving? I'd be surprised if there wasn't a clunk every now and then.

Also... how the hell did they come off LOL
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Old Jul 25, 2017 | 10:44 PM
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I don't know. I added a washer and a locking washer. Previous owner said the transmission had to be replaced under warranty a few months after he bought it so I'm guessing the dealer tech never reinstalled the nuts. I have not noticed any strange noises from the rear end.
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Old Jul 25, 2017 | 11:12 PM
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Originally Posted by Dark Sarcasm
I don't know. I added a washer and a locking washer. Previous owner said the transmission had to be replaced under warranty a few months after he bought it so I'm guessing the dealer tech never reinstalled the nuts. I have not noticed any strange noises from the rear end.
Wow, that is a big pair of nuts to forget

Transaxle Mount-to-Rear Suspension Crossmember Nuts
50 N·m
37 lb ft

C5 Torque specs: http://redshift.homestead.com/files/c5torque.pdf

Last edited by jrprich; Jul 25, 2017 at 11:20 PM.
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Old Jul 26, 2017 | 12:19 AM
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That's a serious pair of nuts to be missing.

My old 350z was apparently missing the nut on the lower motor mount when I bought it.

On one high rpm fast shift it literally lifted the entire driveline and shifted it over to the side. The vibration was so bad I thought I had blown the motor.

Thats why they say don't show off for girls, but I did it a bunch of times after that anyways.
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Old Jul 26, 2017 | 12:22 AM
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Originally Posted by 8VETTE7
Or they were never torqued properly and fell off along the road....

OUCH, a big set of nuts hit the road
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Old Jul 26, 2017 | 12:24 AM
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Thanks for the good information.
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Old Jul 26, 2017 | 09:12 AM
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Originally Posted by jrprich
OUCH, a big set of nuts hit the road

Some biker probably took a big pair of nuts to the face!
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