Quote:
Originally Posted by Beave
I went in yesterday for this very same issue. I have a 2011 2SS LS3 about 10K miles. Rubbing noise when backing and turning, or even slow turning forward. Dealer had two bulletins on the issue no recall. The first bulletin from early 2011; stated that 2011 models with auto trans should change the differential fluid and use their supplement. The second bulletin from May of 2012 stated that 2011 and 2012 models with auto trans should have the fluid changed as well as the axle seals, and several key bolts. The fax they received today from GM showed a new bulletin to come out July 1 that states they will continue with the previous fix and added that they will open the differential and change out clutch parts. I am in waiting mode for the parts.
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Do you have the document IDs for these TSBs? I recently had my torque converter replaced and front timing covers at the same time as they were leaking oil.
Now I have a grinding noise under similar conditions as noted and started hearing them right after the aforementioned service was done. However, in my research I am finding conflicting results. This thread focuses on liquid replacements, however other threads mention hub bearing replacement. I have this noise in my front passenger wheel when I take turns and sometimes when in reverse when the engine is "cold".