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u joint problem

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Old Feb 24, 2004 | 10:34 AM
  #1  
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From: Southside,Jacksonville FL
u joint problem

I have a 1977 F-250 highboy and can't keep a u joint in the rear of the main shaft . Please help!!
 
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Old Feb 24, 2004 | 10:39 AM
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Are you keeping it greased? Do you have the truck lifted?
 
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Old Feb 24, 2004 | 10:39 AM
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Does it fail mainly in the shaft or the yoke? Is your truck lifted?
 
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Old Feb 24, 2004 | 10:42 AM
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It fails at the yoke.The ujoints are HD nongeaseable,the truck has no lift
 
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Old Feb 24, 2004 | 10:55 AM
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Originally posted by steveo420
It fails at the yoke.
Check the fit of the cup. Make sure that each cup sits snug against the end stops. Most of the time when a joint fails at the yoke, the yoke is worn out.
Your cups should fit snug - no slack.
Also make sure the yoke is not wobbling on the pinion shaft. This will create undue pressure on the u-joint.
 
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Old Feb 24, 2004 | 11:30 AM
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what are you doing when it fails?....the stock 4 inch rear blocks create a good bit of axle wrap.......
 
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Old Feb 24, 2004 | 04:19 PM
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The yoke has some bearing play and the yoke it self is a mess(alot of breaks)
 
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Old Feb 24, 2004 | 04:27 PM
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Originally posted by steveo420
The yoke has some bearing play and the yoke it self is a mess(alot of breaks)
Now you know the problem.

I bet you can get those at a junk yard. There are a few driveshaft shops here that sell them for a fairly good price. Northeast Texas that is.
 
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Old Feb 24, 2004 | 05:13 PM
  #9  
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thank's for the help i'll rebuilt the 205 and get a new yoke
 
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