Hub Bolt Sheared

fishEH

Well-known member
Jan 26, 2009
6,930
203
Lake Villa, IL
My experience is they break because they worked themselves loose. That's why I throw the stock bolts in the trash and replace them with the correct size bolt.

I've pulled the wheel and had some hub bolts loose a couple times. Never lost or broken any though.
Yes, please tell us what the correct size is.
 

fishEH

Well-known member
Jan 26, 2009
6,930
203
Lake Villa, IL

Just got some HD drive flanges and I'm breaking down and buying 12.9 Socket cap screws. Yes, despite all my previous protesting.
I'd like to point out for future reference the above link is bogus. The stock bolts are closer to 45-46mm in length, not 40. So I'm buying the 50mm bag-o-25 from McMaster.
http://www.mcmaster.com/#91290a532/=ooeu4o

IMAG0426_zps75bb4081.jpg
 

cupgt

Well-known member
Apr 5, 2011
573
1
Upstate SC
I'm running 45mm. Chased all threads with a tap and used blue loctite. Prob should have gone with 50mm since I used a flat washer under them.
 

DiscoClay

Well-known member
Mar 18, 2021
447
90
Chapel Hill, North Carolina, USA
This. They're not expensive.


Those bits are sh!te... it kinda works but I seem to go through them like cans of brakeclean... eventually it maaaay come out. Don't force the drill or you'll be trying to extract the broken bit...(good times).

Re: vise grips: I had a Detroit locker in the rear of a 95 d1 with Salisburys' .. it ate those hat bolts every ~6mo or so. I never had one shear above the flange surface.. they always sheared *just* below. :p
 
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p m

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Apr 19, 2004
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Those bits are sh!te... it kinda works but I seem to go through them like cans of brakeclean... eventually it maaaay come out. Don't force the drill or you'll be trying to extract the broken bit...(good times).

Re: vise grips: I had a Detroit locker in the rear of a 95 d1 with Salisburys' .. it ate those hat bolts every ~6mo or so. I never had one shear above the flange surface.. they always sheared *just* below. :p
I think that takes the prize for timely response - two months short of 10 years :)
 
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Jimmy

Well-known member
Apr 10, 2006
743
64
Aurora, CO
Those bits are sh!te... it kinda works but I seem to go through them like cans of brakeclean... eventually it maaaay come out. Don't force the drill or you'll be trying to extract the broken bit...(good times).

Re: vise grips: I had a Detroit locker in the rear of a 95 d1 with Salisburys' .. it ate those hat bolts every ~6mo or so. I never had one shear above the flange surface.. they always sheared *just* below. :p

I guess you should have bought them 10 years ago, then. :ROFLMAO:
 
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robertf

Well-known member
Jan 22, 2006
4,801
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I guess I'll update this 10 years later

Don't use RTV on drive flanges. I stopped having this problem when I started using that non oxygen curing sealant. I'm drawing a blank on what its called, but its red and slightly expensive.

Paper gasket soaked in grease like the manual intended would probably work just fine too.

wheel bearings also need to be perfectly tightened. I copied what eeezzzz (?) was selling years ago, which I believe I shit all over the idea at first. Live and learn. its a washer with lots of holes and a pin loosely tightened, and then tighten the outer nut in the 100+ footlb range. Almost a direct copy of the last gen dana 30/44 stuff that still had adjustable wheel bearings.
 
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