Well I think it's a little late to check how the fixed the leak. I already had the rear end replaced, but I have to tell you. A lot of things wrong that I thought were the transmission ended up being corrected by swapping out the rear end.
I used to get a grinding feel when I would start to move in first. Now it's completely gone. I also used to get this clanking sound when releasing the pedal while driving in reverse. That's also gone. That just goes to show that anything that is out of the normal, you shouldn't dismiss as non important.
I think I was very fortunate that I only had to pay $500 to replace it. Lesson learned.
Well I think it's a little late to check how the fixed the leak. I already had the rear end replaced, but I have to tell you. A lot of things wrong that I thought were the transmission ended up being corrected by swapping out the rear end.
I used to get a grinding feel when I would start to move in first. Now it's completely gone. I also used to get this clanking sound when releasing the pedal while driving in reverse. That's also gone. That just goes to show that anything that is out of the normal, you shouldn't dismiss as non important.
I think I was very fortunate that I only had to pay $500 to replace it. Lesson learned.
Some are opting to leave the rear end alone even though they are hearing a distinct whine or other issues. Some don't want the hassles of getting a new rear end or think that nothing will become of it.
It isn't clear if no problems will arise from the whine or if other problems will result as a byproduct of this. If GM is replacing these rear ends under warranty and people choose not to go through with it, it could end up costing more than what you paid down the road.
Some are opting to leave the rear end alone even though they are hearing a distinct whine or other issues. Some don't want the hassles of getting a new rear end or think that nothing will become of it.
It isn't clear if no problems will arise from the whine or if other problems will result as a byproduct of this. If GM is replacing these rear ends under warranty and people choose not to go through with it, it could end up costing more than what you paid down the road.
Glad your issues were taken care of.
If anyone else experiences something similar and are within warranty, I strongly recommend having it looked at and replaced if necessary. I would also look into buying the extended warranty.
I had my rear end replaced and I still get the same noise slowing down (from 50 to 40 mph) I also get a growling-rumbling noise when accelerating from 40 to 50 mph. Going to take it back again.
With these similar problems that we have how can you tell that the problem is stemming from the rear end differential and not the transmission?
I had my rear end replaced and I still get the same noise slowing down (from 50 to 40 mph) I also get a growling-rumbling noise when accelerating from 40 to 50 mph. Going to take it back again.
With these similar problems that we have how can you tell that the problem is stemming from the rear end differential and not the transmission?
I have heard of some owners having to have the rears replaced several times before they got a "quiet" one. Some report still having some "slight" whine.
As far as telling if it's coming from the rear and not the transmission... I am not sure while driving but with the service bulletins coming from GM, the symptoms indicate rear end issues. I would request changing the oil out and new synthetic oil with the friction modifier installed at the dealer be the first step to see if this quiets it down and if not then another change out would be next.
Having the car with it's back end of the ground while the car's gears are engaged while someone is listening to the rear with a stethoscope they will be able to narrow it down.
Thanks, That's what I fugured.
As far as the type of diff fluid what would you suggest, Royal Purple?
Some guys swear by this. If the Rear is under warranty I seriously doubt they will use Royal Purple. If you are doing the work yourself then that may be a good alternative.
Make sure you siphon out all the old oil. I worked for Dana many years and I can tell you, unless customers ask for certain fluids, Dana will not always use the "good stuff."
Well I am going to take it back again and see what they will do.
If it's just a matter of flushing and changing out the fluid with something different then I am all for it. I have a feeling they will try giving me another diff. I will let you know what happens.
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