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Old Feb 29, 2008 | 07:49 AM
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88PONY
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Question Bad vibration
got a really bad vibration comming from the shifter on my 91 f250 4x4 5-speed. its fine around town but on the highway forget it its sooooooo annoying. any help would be great!!!
 
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Old Feb 29, 2008 | 08:15 AM
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Does it change when you get on/off the gas? If so I would start the hunt at the u joints first.
 
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Old Feb 29, 2008 | 09:02 AM
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88PONY
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no, just at highway speeds....could it be some kinda shifter bushing???
 
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Old Feb 29, 2008 | 07:16 PM
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ok, found the problem....the yoke nut is sheered off and the yoke is slipping of the end of the transfer case....what case is in this truck ya think???
 
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Old Feb 29, 2008 | 09:40 PM
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Is it a light duty or heavy duty truck?It's probly got a BW 1356 transfer case...unless they kept running the 208's into those years...should be a tag on the T-case on the back...if it's round with blue righting it's a NP...luck

JR
 
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Old Feb 29, 2008 | 10:53 PM
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its gotta be a light duty. its an xlt lariat with a 5.0l and 5speed its kinda dogish...lol i know the case says borg warner, and it is a manual shift
 
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Old Mar 1, 2008 | 07:45 AM
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yeah I think it's what I got in my f-150, the borg-warner 1356.
 
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Old Mar 1, 2008 | 01:55 PM
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Yea most likely is a 1356....don't rule out a bad tranny mount either.....just cause it ain't slingin back and forth from one side of the cab to the other don't mean it ain't bad....

JR
 
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Old Mar 1, 2008 | 08:38 PM
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ok, now i see some of these xfer cases ar manual or auto shift. does it really matter??? my truck is manual
 
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Old Mar 2, 2008 | 11:19 AM
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The only difference between the two are auto locking hubs..and the electric motor that shifts the xcase from 2wd to 4wd(pushbutton on the dash)The U joints n such should be the same.

JR
 
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