Rear end noise

[RMorgan97Blk]

I have started hearing a strange noise from the rear end (differential) of my 97 automatic. When it's cold everything sounds normal but after it is warmed up there is a growl or grinding noise coming from the rear end when I make slow speed turns. Only have 26K miles. I had the fluid changed in the differential and that did not help. Any ideas? Am I looking at a new rear end?

 

[Mike Mercury]

when the fluid was changed, was the "friction modifier" additive also poured in?


Try driving figure "8"'s in a huge - open parking lot (look out for lamp posts). This gets the fluid into the clutch packs.

 

[RMorgan97Blk]

Thanks for the reply. The additive was put in and the figure 8s didn't help. Guess next step is take it to the dealer.

 

[VETTEX2]

Make sure it's the diff. It could be the rear wheel bearings also.