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Topic: Steer axel wheel stud question  (Read 401 times) previous topic - next topic

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  • hdff
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Steer axel wheel stud question
Yesterday I had the coach at the shop getting some helper springs installed on the brakes among other things. The shop foreman called me and ask me to come by to look at something. Some of the wheel studs had pulled away from the hub as seen in...

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Re: Steer axel wheel stud question
Reply #1
Wow those are expensive! It looks to me like they have been over torqued to many times, and stretched. My opinion, torque them to what its supposed to be torqued and check them often.

Re: Steer axel wheel stud question
Reply #2
Replace only the ones that pulled through,  but have a couple of spares in case during the torquing another one pulls through.

Re: Steer axel wheel stud question
Reply #3
Studs are (or should have been) pressed in, doesn't look like these were ever bottomed out. Could be they were and the backing nuts were never tightened originally???

Get the studs bottomed out (I would prefer a press over "knocking them in"),...

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Re: Steer axel wheel stud question
Reply #4
When I replaced a couple of mine last year I used the backing nuts to pull them through and seat them.

  • John44
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Re: Steer axel wheel stud question
Reply #5
Agree with Ralph,they were either not tightened all the way or possibly the wrong ones,the threads look good,put some penetrating
oil on them and tighten them,there's no way they would stretch that much,the threads would give out.Do you have a...

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Re: Steer axel wheel stud question
Reply #6
I had the same problem back In February.  I think MOT charged about $100 each to replace the stretched studs on my front end.

Damaged lug bolts

As I mentioned in the post, the front tires had been replaced a year earlier and the dealer accepted...

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  • hdff
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Re: Steer axel wheel stud question
Reply #7
I'm at work now but yes I have a part number at home. No truck part place around here has them. One place I talked to said the came up as vintage, but they didn't have them. MOT didn't have any FOT only had 3, meritor was on back order except for...

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  • hdff
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Re: Steer axel wheel stud question
Reply #8
George, Herman Power put tires on my coach 2 years ago when I bought it but I had an issue on the road with one of then and replaced the steer tires this year, that is when one lug was noticed. So I'm sure Herman power would now say it wasn't...

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Re: Steer axel wheel stud question
Reply #9
Keith...  It might be worth a try.  When I talked to them I was not even asked for proof that the tires were bought there.  And it was the previous owner that bought them.  I got the feeling that I was not the only person to bring this problem to...

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Re: Steer axel wheel stud question
Reply #10
 I would tighten the nut on the backside and pull the studs in and then get a depth gauge and determine whether the studs have stretched or not

Re: Steer axel wheel stud question
Reply #11
The studs and matching backing nuts are proprietary to Meritor. I visited a big truck supply house in Knoxville, TN last year and looked through an entire Euclid catalog of wheel studs and never found anything with the same dimensions as the...

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  • Dub
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Re: Steer axel wheel stud question
Reply #12
Go to a local diesel rig tire shop and beat the crap out of prices quoted you.. I buy them by the box and don't have access to the last tiicket but I can promise that if they had of been that much each I would remember it.. True I buy a lot of...

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  • Dub
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Re: Steer axel wheel stud question
Reply #13
Ok after reading traveling man post maybe these are "special".. I buy them for semi trucks and trailers so I will shut up until I have to buy any for the coach then you can bet I will be heard from again. I would be darn sure I couldn't buy them...

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Re: Steer axel wheel stud question
Reply #14
How do we prevent this from happening in the future? 

I hate to pay for six new tires plus extras and then have to get out my torque multiplier to  torque all the wheel nuts properly............in public.

  • hdff
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Re: Steer axel wheel stud question
Reply #15
The price quoted to me from meritor was 95.17 per pack of 2 and said I could get them cheaper going thru a truck parts house buying them from them. They gave some dealers local to me to do this. Their price was 55  but I didn't ask if that was...

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Re: Steer axel wheel stud question
Reply #16
Have a look at the threads sticking out of the nuts on the backside. If the ones that are good have more thread than the bad ones sticking out, tighten the nuts as mentioned before in this post. If they tighten up then they would be good to go.

Re: Steer axel wheel stud question
Reply #17
 The amount of the stud protruding from the nut seems to be Different lengths .  I would drive in the stud and re torque the nut .  If the stud was stretched it certainly would not show on the backside of the nut .

  • Dub
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Re: Steer axel wheel stud question
Reply #18
Only 2 ways to prevent it Travlin' Man.. Stand and watch the kid torque the studs or torque them ourself.. Dam shame with the cost a man can't get proper work done..

Re: Steer axel wheel stud question
Reply #19
It looks to me the nuts that pull them in have backed off just tighten them up and you should good to go.

Re: Steer axel wheel stud question
Reply #20
The reason in my reply that they must tighten up to be good, comes from previous posts where the pulling force from the larger diameter lug nut actually pulled the threads out of the inner nut or inside threads of the stud. The stud's in question...

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Re: Steer axel wheel stud question
Reply #21

Somehow, maybe by checking a new replacement stud, find the overall length of a new stud.  Then measure the overall length of your studs.  If your studs are longer than they used to be, bin them and replace them with new.  Once you stretch the...

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Re: Steer axel wheel stud question
Reply #22
Somehow, maybe by checking a new replacement stud, find the overall length of a new stud.  Then measure the overall length of your studs.  If your studs are longer than they used to be,...


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Re: Steer axel wheel stud question
Reply #23
Maybe loctite some new retainer nuts.   For some odd reason, it seems as tho the tq value for the outer nut is higher then the inner retainer nut.
  If the outer is over torqued then they will pull out.
 Also  ** if your bus has left hand threads...

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Re: Steer axel wheel stud question
Reply #24
Maybe someone mentioned this, but my stretched studs were discovered when they could not torque them to 450 foot-pounds. 

George