wierd noise coming from rear end
Posted 12 August 2007 - 06:12 PM
Posted 12 August 2007 - 06:15 PM
Posted 12 August 2007 - 07:02 PM
GM had a problem with the temper in some axle side gears from 2000-2004 in the 8 1/2 rear ends. I have had to change out three sets of axle side gears thus far. An updated set is available now. The tooth count and part numbers have been changed. These were all open differentials, but I suspect the G80 could have the same issues. I do not have enough of those in the fleet to know for sure.
Check the carrier bearings for looseness. No side play is acceptable. There were some issues with using the wrong diff gasket and blocking the oiling holes for the axle tubes. This starves the carrier bearings lubricant and leads to premature failure.
More on that issue here: Wrong Differential Gasket And Cover ? (S-10crewcab.com Forum).
ZR2.com had a good artilce about it in the FAQ. Here is one from the Impala Forum : IMPALA SS DIFFERENTIAL EXPOSED
Posted 20 August 2007 - 07:44 PM
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