Help Please! Tunnel Stay Bolts

turtle64b · 01-07-2020, 06:34 AM

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!

turtle64b · 01-08-2020, 05:43 AM

No one has messed with these at all?

DaveZ03 · 01-08-2020, 06:57 AM

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.

turtle64b · 01-08-2020, 07:14 AM

Quote:

Originally Posted by DaveZ03

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.

SouthArk370Z · 01-08-2020, 08:07 AM

The FSM (link in my sig) may have the info you are looking for.

turtle64b · 01-08-2020, 09:00 AM

Quote:

Originally Posted by SouthArk370Z

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.

JARblue · 01-08-2020, 09:05 AM

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.

turtle64b · 01-08-2020, 09:14 AM

Quote:

Originally Posted by JARblue

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!

SouthArk370Z · 01-08-2020, 11:08 AM

Quote:

Originally Posted by turtle64b

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.

turtle64b · 01-08-2020, 11:22 AM

Quote:

Originally Posted by SouthArk370Z

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.

JARblue · 01-08-2020, 12:03 PM

Quote:

Originally Posted by turtle64b

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.

JARblue · 01-08-2020, 03:03 PM

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.

turtle64b · 01-08-2020, 04:24 PM

Quote:

Originally Posted by JARblue

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!

240se · 01-08-2020, 08:07 PM

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.

turtle64b · 01-09-2020, 09:55 AM

Quote:

Originally Posted by 240se

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!

01-08-2020, 08:07 AM	#5 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	The FSM (link in my sig) may have the info you are looking for. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-08-2020, 09:05 AM	#7 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	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. SouthArk370Z, sx moneypit and turtle64b like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

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01-08-2020, 05:43 AM	#2 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3366	No one has messed with these at all?

01-08-2020, 06:57 AM	#3 (permalink)
DaveZ03 Base Member Join Date: Feb 2019 Location: Kentucky Posts: 234 Drives: '11 FairladyZ Rep Power: 51860	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.

01-08-2020, 08:07 PM	#14 (permalink)
240se Enthusiast Member Join Date: Nov 2013 Location: VA Posts: 260 Drives: Gunmetal 12' Rep Power: 12	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.