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  #16  
Old 04-26-2011, 05:30 PM
FX4OR FX4OR is offline
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Join Date: Dec 2010
Posts: 417
Default Re: Reverse = Thudd (dirveshaft or U joints?)

does it do it when cold and hot, or only cold?
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  #17  
Old 04-27-2011, 09:47 AM
BOBBO BOBBO is offline
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Join Date: May 2010
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Default Re: Reverse = Thudd (dirveshaft or U joints?)

Hey, It does not do it in the morning after the truck has been sitting overnight. After it warms up I find it gets more noticeable.
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  #18  
Old 04-27-2011, 12:55 PM
FX4OR FX4OR is offline
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Default Re: Reverse = Thudd (dirveshaft or U joints?)

then you can probably rule out valve body/gasket related issues. I'd look into the software issue previously posted.
mine does this only when cold, because the vb gasket is slightly blown out internally, losing pressure to actuate the reverse servo. but that was a known 5R55E tranny problem, and was fixed long before your truck was built.
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  #19  
Old 04-27-2011, 04:12 PM
dryin dryin is offline
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Default Re: Reverse = Thudd (dirveshaft or U joints?)

knwo i have no idea what is it is called but mine dose the same thing but its a 95 but its a berring in your drive shaft and its ontop of a cross member sorry i know it anit alot of help i hope someone can figure out what iam talkin about
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