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Old 05-05-2008
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Front Diff Clunking

I have a nice clunking sound coming from my front diff. It only happens when I'm rolling backwards and I start to go forward. So I have had two people tell me the same thing. The backlash may be off. What do you think? Also, would this cause my front pinion seal to leak constantly?
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Old 05-06-2008
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Park in 2 WD , crawl under and grab the front driveshaft near the pinion and try to move it up and down , checking for a loose pinion nut or bearing.Then start the truck , put it in 4 WD and move it forward and back a few feet.Shut it off in gear .Crawl back under and twist the driveshaft back and forth to see how much play/backlash it has .There should be some but not excessive.
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Old 05-06-2008
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Quote:
Originally Posted by OTRtech View Post
Park in 2 WD , crawl under and grab the front driveshaft near the pinion and try to move it up and down , checking for a loose pinion nut or bearing.Then start the truck , put it in 4 WD and move it forward and back a few feet.Shut it off in gear .Crawl back under and twist the driveshaft back and forth to see how much play/backlash it has .There should be some but not excessive.
Well I don't know how much play is excessive so I will post a video of it.
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Old 05-06-2008
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ford probably ****ed it up when they replaced your front pinion seal. probably did not torque the pinion nut down enough.
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Old 05-06-2008
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Originally Posted by ranger View Post
ford probably ****ed it up when they replaced your front pinion seal. probably did not torque the pinion nut down enough.
I doubt there is a way to prove that they messed it up. The only thing I have now is that they worked on it last. I'm about ready to trade the damn truck in anyway.
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Old 05-06-2008
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check the u-joints in the front shaft as well. that will clunk if there bad
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Old 05-06-2008
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check the u-joints in the front shaft as well. that will clunk if there bad
I know that but its for sure coming from the front diff. I can see and feel that it is.
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