GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Another one piece driveshaft on a CC-NNBS goes Boom

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Old Feb 12, 2013 | 09:45 AM
  #61  
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Originally Posted by Ieatpeople
my truck (in my sig) most definitely has a 1pc steel driveshaft, and i bought the truck new. the driveshaft is rusty, a magnet will stick to it, and its pretty heavy.

at what speed should i worry about the driveshaft? i've had it up to 135mph, and didnt notice any odd vibrations.
Because the 4wd shafts have not been failing, I would have yours high speed balanced and move on.

Originally Posted by AUTOT3K
I emailed a local driveline shop that typically does 4x4 shafts and race cv axles but I figured they might be able to do something.
He was talking about increasinh my u joint size and the yoke on my diff.
Is that really needed? Couldn't I just use the same slip yoke on my current shaft then swap the garbage aluminium for a 5" steel shaft and hi speed balance? Use factory u joints?
NNBS trucks already run 1350 series ujoints, so no, none of that is necessary.
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Old Feb 12, 2013 | 12:31 PM
  #62  
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I sent him the link to this thread as well as ds shafts so hopefully they can come up with something. Otherwis ill have to bite the bullet on shipping to canada
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Old Feb 12, 2013 | 04:35 PM
  #63  
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Does anybody have the extended cab short bed 6l80e measurements? Or am I gonna have to find some time to get on the drive on hoist?
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Old Feb 12, 2013 | 08:48 PM
  #64  
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Originally Posted by AUTOT3K
Does anybody have the extended cab short bed 6l80e measurements? Or am I gonna have to find some time to get on the drive on hoist?
Not yet ... I was asking same question on a different thread but never got an answer... Soon as i get my 6L80E bolted in i will have the measurement but it maybe cple weeks before that happens ... Hopefully someone with CCSB can chime in and get a measurement .. I need to see if i need my cust. DS modified ... I thought i had read the 6l80e is 1 to 1-1/2 inches shoreter than 4l60e but i cant find it again.
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Old Feb 13, 2013 | 08:01 AM
  #65  
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What do y'all need guys? I have a ccsb 2wd
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