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1971 chevrolet pickup rearend noise

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1971 chevrolet pickup rearend noise

occlark occlark
New User | Posts: 5 | Joined: 09/09
Posted: 12/23/09
06:56 AM

needing some feedback.i have completely rebuilt the rearend on this truck ,new axle,s new bearings new ring and pinon new eaton limited slip .after all of this i still have a whining noise in 3rd and 4th gear between 60&65 miles per hour at 70mph it goes away.the whining occurs loaded and unloaded.any thoughts or opinions will be considered other than turning up the radio.  

Bad71 Bad71
New User | Posts: 3 | Joined: 02/12
Posted: 02/01/12
08:54 PM

I am no tech specialist but I just read a tech tip about filing the gears before putting them together helps reduce noise. The story was listed under rebuilding a 12 bolt rear end. Check it out.  

waynep7122 waynep7122
New User | Posts: 17 | Joined: 12/11
Posted: 02/03/12
12:26 PM

something is not right in the bearing preload, the pinion depth.. or the gear lash..  

perhaps this would help...   you will probably want to open it in a new window to see it all..