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Help Please! Tunnel Stay Bolts

I am about to do my differential bushings. Going under my car, I noticed that the previous owner went over something a little too tall and bent one of the

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Old 01-07-2020, 06:34 AM   #1 (permalink)
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Default Help Please! Tunnel Stay Bolts

I am about to do my differential bushings. Going under my car, I noticed that the previous owner went over something a little too tall and bent one of the tunnel stay bolts badly so I am going to replace it. Before I pull the brace off to get the bolt size, I want to see if anyone knows the size / thread pitch of these bolts so that I can have them on hand before starting.

Also, if there is a way to find this information, I would be happy to learn where.

Lookup Code: 74670A

Nissan Part Number: 01121-07351

Thank you!
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Last edited by turtle64b; 01-07-2020 at 06:37 AM. Reason: Add picture
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Old 01-08-2020, 05:43 AM   #2 (permalink)
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No one has messed with these at all?
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Old 01-08-2020, 06:57 AM   #3 (permalink)
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I looked over a couple diagrams online yesterday to try and help you out, but unfortunately the best I could find were diagrams similar to the one in your original post. I wasn't able to locate the size or the thread pitch.
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Old 01-08-2020, 07:14 AM   #4 (permalink)
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Originally Posted by DaveZ03 View Post
I looked over a couple diagrams online yesterday to try and help you out, but unfortunately the best I could find were diagrams similar to the one in your original post. I wasn't able to locate the size or the thread pitch.
Thanks for looking! I've scoured drawings and part numbers and call numbers and I feel like just about everything to try and find something.
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Old 01-08-2020, 08:07 AM   #5 (permalink)
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The FSM (link in my sig) may have the info you are looking for.
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Old 01-08-2020, 09:00 AM   #6 (permalink)
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Originally Posted by SouthArk370Z View Post
The FSM (link in my sig) may have the info you are looking for.
Thank you! That's the first place I checked... It gives torque values for the bolt but does not include the part number for the bolt. The next place I went was to find the tunnel brace on a parts website. Once I got that drawing, I got to the bolt call number, which led me to the bolt's part number. I then tried searching by those two numbers to try to find anything specific, but I couldn't.
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Old 01-08-2020, 09:05 AM   #7 (permalink)
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Let me know if you'd like me to pull one and size it for you. I'm heading over to Fastenal later this week to get some other misc bolts I need for my Z.
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Old 01-08-2020, 09:14 AM   #8 (permalink)
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Let me know if you'd like me to pull one and size it for you. I'm heading over to Fastenal later this week to get some other misc bolts I need for my Z.
I appreciate that! I'm not out to inconvenience anyone to have them take off one of their's for me. Worst case is I will take one off on Thursday and run over to O'Reillys or the like to get more. Thank you!
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Old 01-08-2020, 11:08 AM   #9 (permalink)
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Thank you! That's the first place I checked... It gives torque values ... tried searching by those two numbers to try to find anything specific, but I couldn't.
Sounds like you've done your homework.

Tip: Some PDF readers have a "Search all PDFs In Folder" function. Put all the FSM files in a folder and tell your reader to search that folder.
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Old 01-08-2020, 11:22 AM   #10 (permalink)
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Originally Posted by SouthArk370Z View Post
Sounds like you've done your homework.

Tip: Some PDF readers have a "Search all PDFs In Folder" function. Put all the FSM files in a folder and tell your reader to search that folder.
You are my hero, thank you! I have them all downloaded, but I didn't know that.
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Old 01-08-2020, 12:03 PM   #11 (permalink)
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Originally Posted by turtle64b View Post
I appreciate that! I'm not out to inconvenience anyone to have them take off one of their's for me. Worst case is I will take one off on Thursday and run over to O'Reillys or the like to get more. Thank you!
My Z is in the air already, so it's really no inconvenience. I'll be home after a 1:30 appt this afternoon and should have an opportunity then.
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Old 01-08-2020, 03:03 PM   #12 (permalink)
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Even better, I ran by the Nissan dealership. I got a part number and confirmed that it's available to purchase individually.

Part #54459-1EAOA

See attached pic for the size confirmation - I can measure the length if you want, but note the bolt head has a melded washer of sorts.
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File Type: jpg IMG_0155.JPG (253.6 KB, 16 views)
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Old 01-08-2020, 04:24 PM   #13 (permalink)
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Quote:
Originally Posted by JARblue View Post
Even better, I ran by the Nissan dealership. I got a part number and confirmed that it's available to purchase individually.

Part #54459-1EAOA

See attached pic for the size confirmation - I can measure the length if you want, but note the bolt head has a melded washer of sorts.
Awesome, thank you so much!
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Old 01-08-2020, 08:07 PM   #14 (permalink)
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I broke one of these off using a torque wrench. The shop manual said 24 ftlbs but it broke before that. I should have known it was going to break, too many turns after it became snug.
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Old 01-09-2020, 09:55 AM   #15 (permalink)
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I broke one of these off using a torque wrench. The shop manual said 24 ftlbs but it broke before that. I should have known it was going to break, too many turns after it became snug.
I hate that feeling sooo much!
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