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Discussion Starter · #1 ·
2001 F250 CC PSD - 10.5 diff
I've had a chucking noise pulling my 5th wheel to Fla for the winter. Only makes this noise while turning to the left or right. As long as i do not accelerate while making these turns, all is well. On the straight away, no problem.

I changed the fluid and noticed a improvement, but the problem remains.
What's the chances of my returning to Va before a mechanic checked this?
 

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Did you put limited slip additive in?
 

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Discussion Starter · #3 ·
yes, used Valvoline which has the additive. Also have added 1/2 tube pure additive.
 

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The clutch pack has probably disintegrated. It might be worth pulling the cover and checking for any broken / loose parts. You don't need the limited slip on the concrete. So as long as there isn't debris that might chew up the bearings or the gears I don't think you've got anything to worry about. If you pull the cover and find debris, clean as much of it out as you can.
 
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