Replaced Axles, now Gear Whine?
 

I replaced my axle on the 1999 Z-28 M-6 3:42's with Superior Axles and bearings, previous factory axles were pitted and roared like a lion.

All went well, but now I hear a whine from 39-46 MPH. Sounds link Gear whine and probably never heard it before with the bad axles roaring away.

Looking at the other threads on whine it appears this is common, just the MPH is happens is the only difference.

So the question is, since I have 96K on the car and use it for commuting and it is not that bad (Actualy really quiet at 70 MPH) just leave it or pay to get it fixed?

I assume this is not a cheap fix and I do not have the tools or experience.

Thanks

Really depends on how much you can tolerate the noise. It can last a long time that way if the noise doesn't bother you.

I can live with it, just wondering of the cost (Average).

Also, for those in the know, is this the shims on the carrier or the pinion gear that adjust for the whine (I have been reading up on this a bit, but I'm not expert on rear ends, cars that is....)

Thanks,

T

Buehler, Anyone, Anyone?

James Madison.

The whine could be coming from a few different things, the pinion measurements or the backlash, or perhaps just a bad bearing.

It's hard to say what might be the culprit, since you said the whine might have been there before (and the roaring overpowered it). Depends on how much noise you can withstand...if it doesn't bother you that much in your commute, I would probably just leave it alone.

Thanks, sounds like the best option, it is not that loud.

My wife thinks I should also, if she cannot hear it, all is well!

BTW, I'm running mobil 1 75-90, would Royal Purple or something else be better?

T

I did replace the fluid with Amsol 75W140, a bit quieter, man that stuff is thick.

I did notice the pattern, it seems to be "riding" on the edge of the ring gear. Again, not an expert, but might take it in between business trips.