Bolts aren't bolting

jeepdad607 · Sep 14, 2025

When I purchased my tj the front driveshaft was not installed. I'm trying to reinstall it however the oem bolts (outlined in red) I purchased to connect the driveshaft to the transfer case don't fit. They'll start to thread but they seize up 3-4 turns in. I'm unable to fully seat them. What do i do now?

Rygrego · Sep 14, 2025

Run a thread chaser of equal size through the hole without cutting fresh threads. I'm betting the bolts are an incorrect pitch regardless of where they were purchased.

macleanflood · Sep 14, 2025

Well, nuts.

How about some pictures?

What's the size and thread pitch of the bolts?

Where did you source them?

-Mac

jeepdad607 · Sep 14, 2025

macleanflood said:
Well, nuts.

How about some pictures?

What's the size and thread pitch of the bolts?

Where did you source them?

-Mac

Got them from rockauto after cross referencing the correct specs with other resources.

KennethS · Sep 14, 2025

Can you bring the shaft to the parts / hardware store and find bolts that will thread in to verify the thread pitch? It really sounds like a mixup between metric and SAE threads.

jeepdad607 · Sep 14, 2025

KennethS said:
Can you bring the shaft to the parts / hardware store and find bolts that will thread in to verify the thread pitch? It really sounds like a mixup between metric and SAE threads.

That's a great idea. I'll do that

OldBuzzard · Sep 14, 2025

Those bolts often come with a dry threadlocker applied. When they're installed, they "cure", and when they're removed, that hardened threadlocker can be very difficult to get out of the inside threads.

Chasing the inner threads like Rygrego suggested would clean that stuff out.

mrblaine · Sep 14, 2025

OldBuzzard said:
Those bolts often come with a dry threadlocker applied. When they're installed, they "cure", and when they're removed, that hardened threadlocker can be very difficult to get out of the inside threads.

View attachment 643067

Chasing the inner threads like Rygrego suggested would clean that stuff out.

Well for nothing and not in disagreement about using a chaser to clean up the threads, but something tells me if he had a set of Metric and SAE thread chasers, he would already know how to find the thread size and clean out the holes.

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Bolts aren't bolting

jeepdad607

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Rygrego

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macleanflood

I break sh!t

jeepdad607

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KennethS

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jeepdad607

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OldBuzzard

nerd before it was cool

mrblaine

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