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Major slop in 98' f150 rearend.

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Old May 9, 2007 | 11:56 AM
  #1  
Merculous's Avatar
Merculous
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From: White City, Sk ,Canada
Major slop in 98' f150 rearend.

My rearend in my truck clunks like crazy when you take off from a dead stop. I thought it was a u-joint but found there is some major play in the diff. If I grab the pinion flange, I can rock the pinion side to side like 2 inches. This is with the wheels on the ground and blocked so they can't move. All the slop is in the diff.

-How could this start all of a sudden?
-Could the crush sleave on the pinion have colapsed and caused major tooth clearance at the ring?
-How could this have that much play? I'm scared to remove the diff cover!

Any sugestions?
 
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Old May 9, 2007 | 02:07 PM
  #2  
Silver Streak's Avatar
Silver Streak
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Joined: May 2002
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From: Broken Arrow, OK
If you remove the cover you'll probably find an issue with either the spider gears or the cross shaft. When I rebuilt my 8.8 there was a ton of slop in it and that is where I found it, but mine had about 250k miles on it at the time.
 
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