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Halloween Run wrap up

UserPost

9:26 am
November 3, 2010


jknutter

DDO North Chapter

Moderator

posts 565

Damn Drew I wish I knew what was going on – I had an extra unit bearing assembly with me.  Maybe we should all follow Dean's advice and at least let everyone know what spare parts we are all packing.

 

Here is a pic of the tire climbing:

2005 TJ Rubicon http://www.theknutters.com

9:31 am
November 3, 2010


jknutter

DDO North Chapter

Moderator

posts 565

Just realized our unit-bearing assemblies are different.  THe TJ has a 5 on 4.5 lug pattern and the JK has a 5 on 5 lug…

2005 TJ Rubicon http://www.theknutters.com

1:07 pm
November 3, 2010


Rock 4X Fab

Waukegan IL

New Member

posts 2

Xjay98 said:

3 week old chromoly?!! WTF!!!!??? Who is the manufacturer?


 

The axles are 10 Factory… Drew supplied the axles and we set up gears and put his Metal cloak fenders on right before he went to Maob…

6:40 pm
November 3, 2010


Tony M

Grand Rapids, MI

Mud Slinger

posts 545

Wow broke the Cromo.  I've had pretty good luck with them in my 44's.  Unit bearing is another story.  At least it finally broke on the trail and not on the way home doing 70mph.  It could always be worse.  Glad to hear you got out okay.

79 CJ 7 – Stock

6:51 pm
November 3, 2010


Filthy-Beast

Daily Driver

posts 104

Tony M said:

At least it finally broke on the trail and not on the way home doing 70mph.  It could always be worse.  


 Exactly what I thought! 

 

Here's a pic Scott took of the shaft.

 

 

6:52 pm
November 3, 2010


Tony M

Grand Rapids, MI

Mud Slinger

posts 545

Thats pretty good.  Is that a 44 or a dana 30?

79 CJ 7 – Stock

7:06 pm
November 3, 2010


Weeeee

West Chicago, IL

Admin

posts 909

My guess is 44 since he has a Rubicon. That has to be a defective shaft!

Doug – 2000 TJ

Work in Progress

7:22 pm
November 3, 2010


Tony M

Grand Rapids, MI

Mud Slinger

posts 545

Oh yeah…. Good call.  As far as being defective….maybe.  From the look of that picture the entire jeep is resting on the frame.  If the tires were grabbing in interminent intervals, the torsional load from the rapid load, and unload of torque can cause fatuigue and eventually failure of the axle shaft.   Wow, I can't believe that came out of my mouth…  hands.. whatever.

Cromos are strong and do hold better then normal axels.  However, have you ever seen an axle in a destructive test?  The axle can actually rotate almost a full turn before it fails.  However, if you have a rapid load and unload, it fails in a fraction of that.  Think of how a impact wrench works.

Either way, it broke and that sucks.

79 CJ 7 – Stock

8:17 pm
November 3, 2010


tirespeed

Grocery Getter

posts 15

Tony M said:

Thats pretty good.  Is that a 44 or a dana 30?


 

They call it a 44 but really it's only a D44 in the center. It has the larger ring & pinion and 30 spline inner axle shafts, but it's D30 from there out. Outer axle shafts, hubs, ball joints are the same as other D30 axles.

 

Still, a chromoly shaft shouldn't be the first part to go! I got a good look at the inside of the hub and it really did look like JB weld or silver epoxy for the inside portion of that outer shaft!

10:06 pm
November 3, 2010


Rock 4X Fab

Waukegan IL

New Member

posts 2

I took the outer Stub that was still left in the Unit bearing out,,  and I think what you were looking at or what appeared to be the JB weld or silicone look… was all the Anti-seize. I use it alot.. I hate taking rusted or stuck parts apart.

10:35 pm
November 3, 2010


Filthy-Beast

Daily Driver

posts 104

Tony M said:

From the look of that picture the entire jeep is resting on the frame.  If the tires were grabbing in interminent intervals, the torsional load from the rapid load, and unload of torque can cause fatuigue and eventually failure of the axle shaft.   Wow, I can't believe that came out of my mouth…  hands.. whatever.

Cromos are strong and do hold better then normal axels.  However, have you ever seen an axle in a destructive test?  The axle can actually rotate almost a full turn before it fails.  However, if you have a rapid load and unload, it fails in a fraction of that.  Think of how a impact wrench works.

Either way, it broke and that sucks.


 

Your right on. The Jeep was hung up on the passenger side body mount, It spun left on the mount. Spinning jeep tire wedged between two rubber tractor tires and pop. At first I thought it was the locker because the light started flashing and it would not engage.

 

This pic is after it broke and before the tire fell off.  I'm glad I abused it a little on the trail after that instead of just heading to the lot and then on the road.

 

6:47 am
November 4, 2010


tirespeed

Grocery Getter

posts 15

Rock 4X Fab said:

I took the outer Stub that was still left in the Unit bearing out,,  and I think what you were looking at or what appeared to be the JB weld or silicone look… was all the Anti-seize. I use it alot.. I hate taking rusted or stuck parts apart.


 

That would explain it, glad I wasn't seeing things.



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