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Weird thump/clunking

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Old Jan 15, 2012 | 09:10 PM
  #16  
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big-ugly
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Sounds u-joint related to me.. Going from drive to reverse and getting a "clunk" is usually a bad u-joint. Obviously there is some play in the system somewhere, now it's just a matter of finding where at.
 
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Old Jan 15, 2012 | 09:14 PM
  #17  
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Midnite1987
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Originally Posted by big-ugly
Sounds u-joint related to me.. Going from drive to reverse and getting a "clunk" is usually a bad u-joint. Obviously there is some play in the system somewhere, now it's just a matter of finding where at.
I thought u joints too, that's why I changed them but the issue was still there.

Could te chain in the t-case be slack?
If I grab the rear tire with truck in park and roll it forward as back it seems to go more then I would think to be normal but when it stops at each theres a clunk that sounds to be comming from the middle of the truck. (kindof like the sound when changing gears but not as loud
 

Last edited by Midnite1987; Jan 15, 2012 at 09:15 PM. Reason: Stupid iPhone auto correct...
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Old Jan 15, 2012 | 09:16 PM
  #18  
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Hmm... good question... I haven't ever had to tear apart a transfercase, so I'm really not sure what the symptoms would be of a loose chain.. Hopefully someone else will jump in and give you some good solid info. I would think that would only affect being in 4x4, but I have no idea.
 
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Old Jan 15, 2012 | 09:53 PM
  #19  
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If you think its the chain in the case just unlock the hubs and see if it goes away.
 
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Old Jan 15, 2012 | 11:30 PM
  #20  
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After reading thumpers thread about his lowered truck pinion issues... His problem was the ubolts and the plate bending.... I'm wondering If I didn't tighten the ubolts correctly? The vibration started after doing the leafs.

What's the proper way to tighten them? And what torque?
I'll see if it goes away when I put the 3" blocks in the rear and get the new ubolts in. I don't plan on driving it till then anyways
 
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Old Jan 16, 2012 | 03:47 PM
  #21  
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From: Elk City, OK
Check the tranny mount, try unlocking the front hubs see if it stops.
 
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