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Rear end help?

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Old Feb 15, 2010 | 07:34 PM
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From: Reno nevada
Default Rear end help?

I went to a place to get a four wheel alignment today. Bad news. I have had those custom hardened $550 yokes from mid America in for 12-14 years now with the eaton posi unit. The Tech showed me by lifting the rear tires he could get the yokes to move in and out like a 1/2 inch on each side.

GT1999 or one of you rear end guys are my custom yokes gone? I am not mechanical enough to attack this myself.
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Old Feb 15, 2010 | 07:39 PM
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If the yokes move in/out that much one of two things happened. The yokes are worn out or the C clips came off. Either way it will have to come apart.
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Old Feb 15, 2010 | 07:41 PM
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Do you know if the C clips were installed when the axles were put in? If they have come off then that will allow the movement, or so I have read from the "diff-experts" here.

What year car?
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Old Feb 16, 2010 | 09:49 AM
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It is my 1971 Lt1 4 speed.

Is the Rear end guru GRT1999?
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Old Feb 16, 2010 | 10:02 AM
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Yes, but you will likely need to contact him via his email that can be found on here in other threads. I don't want to spread rumors or spread misinformation so I wont elaborate.

If the C clips were never installed on the axle shafts then that movement would be expected. It has been known to be done that way on purpose because of the wear the axles get and people not wanting the clips to fall off and ruin the rear end.

What you need to worry about is the axles moving inwards so far that the dust shields contact the case and ruin it. Also, if the suspension moves enough to allow the axle to move out .5" then I don't know what that says about the bushings or alignment. I am no expert so don't take this as gospel.
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Old Feb 16, 2010 | 01:46 PM
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I'm just going to bite the bullet and take it down to a friends shop and let him deal with it. I'm going to take pictures of what ever they find.
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