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Popping and grinding

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Old Sep 24, 2010 | 08:46 PM
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Popping and grinding

when the truck is moving slow with the wheel turned to the right from about half way to full lock i get the popping jerking and grinding sound it sounds like it's coming from the back anyone have clue what it could be
 
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Old Sep 24, 2010 | 08:51 PM
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Differential?????

Maybe it is a LS rear end and it is low on gear oil?
 
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Old Sep 24, 2010 | 09:04 PM
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It is a 4.10 LS rearend i have not check the oil yet it was dark when i got home
 
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Old Sep 24, 2010 | 09:11 PM
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It could be that the level is low, or maybe it doesn't have the friction modifier additive in it?
 
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Old Sep 24, 2010 | 09:31 PM
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I went checked the oil and it's way over full as soon as i pulled the plug oil just start's dumping out what next

do i drain the oil and refill with new oil and friction modifier additive
 
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Old Sep 24, 2010 | 10:55 PM
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fordpride,

I have two articles I want to send you on frame noise but I don't know how to attach them. I just sent you a PM with my email address, shoot me an email and I will send them to you.

Kevin
 
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Old Sep 24, 2010 | 11:48 PM
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yep i think it's the rearend UCK
 
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Old Sep 24, 2010 | 11:51 PM
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no warranty
 
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Old Sep 24, 2010 | 11:54 PM
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LOL thats just my luck
 
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Old Sep 24, 2010 | 11:57 PM
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really... if the LS is bad, you can have the one out of my dually.
 
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Old Sep 24, 2010 | 11:58 PM
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Thanks i going to drain an refill tomorrow and se what happens
 
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Old Sep 25, 2010 | 12:00 AM
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what is the best additive? when i refilled mine after the swap, every bottle i looked at said... LS compatible.
 
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Old Sep 25, 2010 | 12:01 AM
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How many qts. of oil did it take to refill yours
 
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Old Sep 25, 2010 | 12:02 AM
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i'm going back regular oil and motorcraft additive
 
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Old Sep 25, 2010 | 12:03 AM
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just over thr33. i just read your post again, does it only make noise on right turns?
 
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