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2013 ctsv
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120 Posts
Discussion Starter #1 (Edited)
cause my car still whines rite out of the dealership........? replaced differential bushing and carrier Assembly

part #15793756 carrier 5.505
part #19121910 bushing 5.301
 

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The whine can also be an improperly indexed driveshaft. If they didn't line up the blue dot and white dot on the diff and driveshaft (respectively) then it will whine.

Also ask if they used the limited slip additive when they filled it.
 

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GROO-V
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You definately got a new rear differential... or at least you should have... 15793756 is the part number for the differential assembly... not sure why they have a differential support bushing listed, the new differential comes with the support bushing installed already...
 

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2004 CTSV
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The only way to be sure is to crawl under the car and inspect it yourself. If you have the new differential it will easily be recognized by the shiny aluminum casting. It looks quite a bit different than the original on the 04 & 05s.

I just had my replaced today. This is the parts list:
1-15793756 Carrier (differential)
1-15852707 vent
2-89021677 gear lube
1-1052358 additive
1-15852707 vent
1-10011 fuel hose
2-1648216 clamp assembly

The job includes the lengthened vent hose per TSB 07-04-20-001.

The bushings are already pressed into the new differential supports. I asked them several times about this and upon inspection they do look new. We'll see if the vent arrangement prevents fluid overflow - haven't driven it enough to be sure. The whining is greatly reduced although it's still there.
 

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I got mine replaced about two months ago and I could still hear a slight whine. It wasn't as loud but still a whine. The dealer told me that it was tire noise but I think that was just BS. It's not as loud so I'm just leaving it alone because I know it will have to be replaced again someday. DAMN, it's crazy how we all except that reality just to own a V.
 
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