Supercrew vibration when towing
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Posting Guru
Joined: Oct 2005
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From: Langham, SK
Supercrew vibration when towing
I was just wondering if anyone else is experiencing a vibration when starting out with a load behined the truck, I have a 2012 supercrew with 6.5' box.
Tuned
Joined: Aug 2006
Posts: 479
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From: Bartlett, TN
Others do it when loaded.
They can do a shim change on the rear end and fix it. I have read that sometimes is fixes it loade but then it will do it un-loaded.
There is another thread on here that is quite lengthy about this subjuet.
https://www.ford-trucks.com/forums/1...-at-5-kph.html
The general concensus is that its a pinion angle problem. Mine did it empty and they changes the blocks between the springs and the rear end housing. Its fine now.
Senior User
Joined: Apr 2006
Posts: 381
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Mine does it as well both loaded and unloaded/ towing. Been to the dealer twice for shims. with extra shims I now have the original shudder and a high speed vibration. I'm taking it back to have some of the shims removed. 
Elder User
Joined: Feb 2006
Posts: 803
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This one of the reasons I stayed with 5.5 box. 1 piece driveshaft vs. 2. Had a friend with 6.5ft 09 and ultimatly they couldn't fix, sold it and bought a used F250. When you look at real world allowance on pin/5th wheel, Ford (and others) have an easy out... "your overloaded, not our problem".
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