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Old April 16th, 2012, 04:05 PM   #1
Bones
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Default D60 balljoint - upper balljoint coming loose in knuckle/C

I posted this on pirate, thought you guys might be able to help, or atleast be curious about the issue

I had a strange find in my last post race inspection. The upper balljoint is sliding up in the knuckle.

Sorry this picture sucks, but you can see that the castor wedge on the top of the C has slid up, and spun around. You can see the flat part of the wedge (that is supposed to be outboard on the C) is facing forward, toward the center of the axle. The castor wedge lip is resting on the lip of the C that the previously mentioned flat spot is supposed to allign against


Here is a shot from the bottom. It shows the balljoint has slid up about 3/8" in the knuckle. The bottom of the balljoint should be almost flush with the bottom of the knuckle.


I measured the C, it is not bent.

So what caused this? It has survived 3 TREC races and KOH without any issue. Now on the last race, it moved... I am half tempted to replace the balljoints, tack weld the balljoints to the knuckle, and the caster wedge to the C.

Any other suggestions?
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Old April 16th, 2012, 04:13 PM   #2
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I've seen the same happen on a my buddies daily driver cummins. Couldnt get thE caster shim back flush either. Seen the same on a few other trucks with. I negative results as long as caster was correct
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Old April 16th, 2012, 04:19 PM   #3
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Is the nut on the lower ball joint tight?
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Old April 16th, 2012, 04:22 PM   #4
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Quote:
Originally Posted by firehawk View Post
Is the nut on the lower ball joint tight?
yep, lower hasn't moved at all

and obviously the nut on the top hasn't moved either, as it is pinned in place. The whole upper balljoint and wedge just slid up.
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Old April 16th, 2012, 04:27 PM   #5
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hmm, I should check mine tonight as I run the same axle.
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Old April 16th, 2012, 04:32 PM   #6
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Quote:
Originally Posted by Bones View Post
yep, lower hasn't moved at all

and obviously the nut on the top hasn't moved either, as it is pinned in place. The whole upper balljoint and wedge just slid up.
The C would have to flex for that to happen right? Inner or outer.

The lower ball joint has not moved either? Maybe it is coming apart?
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Old April 16th, 2012, 05:21 PM   #7
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Bet the lower ball joint has failed the durability test.
There is prolly verticle movement in the lower ball joint allowing the upper to move.
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Old April 16th, 2012, 05:26 PM   #8
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Quote:
Originally Posted by Ironman Offroad View Post
Bet the lower ball joint has failed the durability test.
There is prolly verticle movement in the lower ball joint allowing the upper to move.
I agree with Dale....The lower Ball Joint has to coming apart internally....
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Old April 17th, 2012, 08:54 AM   #9
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yep i agree with dale also.
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Old April 17th, 2012, 11:47 AM   #10
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Well I agree with firehawk, he said it first.
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Old April 17th, 2012, 09:30 PM   #11
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Quote:
Originally Posted by firehawk View Post
Well I agree with firehawk, he said it first.
Lol...yea but you wrote it as a question not a statement.....



Bones, So did you pull it apart yet?
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Old April 17th, 2012, 09:36 PM   #12
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we just had this problem on a superduty, the caster bushing is worn out causing it to rise up like the, it is pulling on the ball joint, and it makes the truck drive like shit on the road. the truck was driving bad and we couldn't figure out why, the truck is at clydes in pontiac right now, they just called today and told us about that bushing rising.
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Old April 17th, 2012, 09:39 PM   #13
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Quote:
Originally Posted by NitzPixs View Post
Lol...yea but you wrote it as a question not a statement.....



Bones, So did you pull it apart yet?
It was an idea, no I was not sure but who cares.
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