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Old 04-12-2014, 02:15 AM   #4
cstm68
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Join Date: Jan 2007
Location: shoreline, wa
Posts: 1,565
Re: 5.3L rattle at freeway speeds?

It is a dull rattle when the radio is turned off. When I'm next Tina jersey barrier or wall I can hear it louder with the windows down. Replaced u-joints, rebuilt transfer case, checked and serviced both diffs and i put it in neutral and shut the motor off and still heard it both huns are new and I pulled the cv axles and still heard it.
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