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  #1  
Old June 5th, 2012, 04:51 PM
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How The F Does This Happen?

After 200 miles on a rear Salisbury disc conversion. Short of a bent stub axle/axle tube flange, what would cause this? I did have a loose wheel bearing, so I am hoping that's the issue.

F'n HD KAM shafts too
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  #2  
Old June 5th, 2012, 05:09 PM
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Quote:
Originally Posted by Wolf Fabrication
After 200 miles on a rear Salisbury disc conversion. Short of a bent stub axle/axle tube flange, what would cause this? I did have a loose wheel bearing, so I am hoping that's the issue.

F'n HD KAM shafts too
Looks like a dinosaur has been chewing on the lock washer!
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  #3  
Old June 5th, 2012, 05:13 PM
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Looks like wheel bearing damage to me.
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  #4  
Old June 5th, 2012, 05:18 PM
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May want to make sure the axle tube has not ecome loose from the diff center casing. Did you get all of the old gasket cleaned off between the stub and axle case flange? Was it a genuine/OEM stub?
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  #5  
Old June 5th, 2012, 06:09 PM
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Quote:
Originally Posted by evilfij View Post
Looks like wheel bearing damage to me.
Not sure what you mean, but that damage is where the axle shaft meets the outside edge of the stub axle.

------ Follow up post added June 5th, 2012 06:10 PM ------

Quote:
Originally Posted by grnrvrs View Post
May want to make sure the axle tube has not ecome loose from the diff center casing. Did you get all of the old gasket cleaned off between the stub and axle case flange? Was it a genuine/OEM stub?
As near as I can tell, the tube appears still in the diff center. I'll take some measurements to be sure. And yes, both meeting surfaces were clean.

------ Follow up post added June 5th, 2012 06:12 PM ------

I did have a loose wheel bearing, so I'm assuming that was just enough misalignment to make the shaft contact the stub axle....hopefully.
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  #6  
Old June 5th, 2012, 06:15 PM
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I've had a really loose rear bearing (sals with GBR axles) a few years back and there was no damage like that. I dont remember any evidence of contact at all.
Seems like a lot of damage... how loose and how long was it driven like that?
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Old June 5th, 2012, 06:17 PM
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Originally Posted by D90user View Post
I've had a really loose rear bearing (sals with GBR axles) a few years back and there was no damage like that. I dont remember any evidence of contact at all.
Seems like a lot of damage... how loose and how long was it driven like that?
Not that loose, but enough to feel movement wiggling the brake disc and make me take it apart to address the issue.

This is the same axle and HD shafts prior to the disc conversion. The shaft was fine before, so this is damage post conversion, not more 200 miles.

I did go on one wheeling trip post conversion, but it was pretty tame - I don't think I bent the axle tube on that trip.
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  #8  
Old June 5th, 2012, 06:23 PM
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you might be able to bring that to a crankshaft shop and i have it spray welded
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  #9  
Old June 5th, 2012, 06:32 PM
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I did install used stub axles in my conversion.....hmmmmm....
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  #10  
Old June 5th, 2012, 06:34 PM
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One of your spare teeth off the ring gear worked its way out the axle tube and jammed between the stub and the axle shaft.
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  #11  
Old June 5th, 2012, 06:37 PM
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Originally Posted by o2batsea View Post
One of your spare teeth off the ring gear worked its way out the axle tube and jammed between the stub and the axle shaft.
Ring gears have spare teeth? This spare tooth also made it though the inner stub shaft seal?
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  #12  
Old June 5th, 2012, 06:49 PM
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It was Pedro.

But we hatched this plan at the last HH, which you missed. So it's really all of us. Well, mainly Lavender. Yup it was all his idea. And Galpin. We just made Pedro do it. Lots of texting.

There. It's out there now and we can all just say we are sorry.


'K?
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  #13  
Old June 5th, 2012, 06:58 PM
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Quote:
Originally Posted by o2batsea View Post
It was Pedro.

But we hatched this plan at the last HH, which you missed. So it's really all of us. Well, mainly Lavender. Yup it was all his idea. And Galpin. We just made Pedro do it. Lots of texting.

There. It's out there now and we can all just say we are sorry.


'K?
F'n Pedro. I should have known it was him. I can picture all of you giggling like little girls texting back and forth too.
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  #14  
Old June 5th, 2012, 09:32 PM
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Can you jack up the truck and spin the shaft to look for movement or hitting? I would think with that much damage you would be able to notice something visually.
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Old June 5th, 2012, 09:53 PM
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So the question should be "what changed". I know you hand "machined" those caliper brackets. Could they be off enough that braking caused pressure on one side of the rotor only, with enough force to bend the axle and have it hit the side? I guess this reverts back to the loose bearings, because I assume if not loose this is impossible to happen.
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  #16  
Old June 6th, 2012, 05:56 AM
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Originally Posted by cgalpin
So the question should be "what changed". I know you hand "machined" those caliper brackets. Could they be off enough that braking caused pressure on one side of the rotor only, with enough force to bend the axle and have it hit the side? I guess this reverts back to the loose bearings, because I assume if not loose this is impossible to happen.
Interesting take Charles, that could be it as well. I did triple check the machining to ensure it was flat and level. At a minimum, the loose bearing could be it. The clearance within the stub axle is pretty tight as well.
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  #17  
Old June 6th, 2012, 07:38 AM
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See the thread from one of the guys doing a hybrid - they were talking about very small tolerances (which I honestly found hard to believe were needed) when installing their calipers.
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  #18  
Old June 6th, 2012, 09:30 AM
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Loose wheel bearing allowed the hub to slide down the stub axle and bend it under weight of the truck especially on bumps which caused the damage. IMHO
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  #19  
Old June 6th, 2012, 09:42 AM
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the inner axle housing, near where the swivel bolts onto the housing, does have a copper bushing to keep the pivot point of the cv joint from bouncing around and causing this issue, inspect for fitting and existence, also the inner tip of the spindle (stubby), where it bolts onto the axle will have the same bushing....all of this is to support the cv in a straight position.
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  #20  
Old June 6th, 2012, 09:44 AM
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Mine did this at the winter romp. There is a copper bushing (bearing) on the other side of the axle stub that need to be inserted. http://www.defendersource.com/forum/...&postcount=163

http://www.roversnorth.com/p-3890-be...90-rrover.aspx
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