Rear End Whine
Thread Starter
Le Mans Master
Joined: Sep 2002
Posts: 6,689
Likes: 0
From: Michigan
St. Jude Donor '15
Rear End Whine
My son and I took the vette out of storage and I took it on a number of errands today to diagnose the rear end whine. (At least that's what I told my wife.) The whine symptons:
- Whine sounds like it is coming from the right rear
- No whine at low speeds (<40)
- No whine on accel
- No whine on decel
- Only whines when traveling at a steady, highway speed.
I'm taking the car in for fluid changes on Tuesday. I was going to have them drain the diff and refill it with Royal Purple. Since the problem seems to be coming from the right side, could there be another cause?
- Whine sounds like it is coming from the right rear
- No whine at low speeds (<40)
- No whine on accel
- No whine on decel
- Only whines when traveling at a steady, highway speed.
I'm taking the car in for fluid changes on Tuesday. I was going to have them drain the diff and refill it with Royal Purple. Since the problem seems to be coming from the right side, could there be another cause?
&amp;quot;Rodstoration &am p;quot; In Progres
Joined: Jun 2004
Posts: 1,397
Likes: 1
From: Frisco TX
Originally Posted by pcfred
Royal Purple quieted mine down. Some say a little whine is common.
Burning Brakes
Joined: Jan 2006
Posts: 876
Likes: 1
From: Same as our leaders Out of my mind
Well, here's an excuse for another test drive. Is the whine more pronounced in a long sweeping turn? If you get the car to lean to one side or the other, does the noise change? If so it may indicate wheel bearings being the source of the noise. Good Luck! 
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Thread Starter
Le Mans Master
Joined: Sep 2002
Posts: 6,689
Likes: 0
From: Michigan
St. Jude Donor '15
Is anyone running Schaeffer's #267 gear lube and what are the results? The folks with quadrasteer trucks often use the stuff to get rid of gear whine.
http://www.schaefferoil.com/gear_oils/267.html
http://www.schaefferoil.com/gear_oils/267.html
Burning Brakes
Joined: Jan 2006
Posts: 876
Likes: 1
From: Same as our leaders Out of my mind
Originally Posted by rihwoods
2 LBS of hambuger meat in the rear end will do it too...worked great on a Plymouth I traded in once...
Le Mans Master
Joined: Oct 2001
Posts: 6,798
Likes: 25
From: Pine Bluff Arkansas
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-‘19-'20-'21
If the noise is coming from the right or left and not the center....should be a wheel bearing. I've already replaced both mine by 70 thousand miles. These aren't a piece of cake to change, tho. Larry
Burning Brakes
Joined: Oct 2002
Posts: 914
Likes: 14
From: Aberdeen, Scotland
"New" Rearend and whine too?
I have the same problem. I had my rear rebuild with 3:55's as I hated the 3:08's, but now have more whine...? 
Its not alot, but more than it had. Maybe Royal Purple would work? Any ideas?
carbster
Its not alot, but more than it had. Maybe Royal Purple would work? Any ideas?
carbster
Melting Slicks
Joined: Sep 2002
Posts: 2,390
Likes: 2
From: New Castle DE
mine started whining on the way back fromthe crab cruise last year. At first i thought it was coming from the front but now i am leaning towards the rear....sounds like bearings and when i make a right hand turn pretty hard it will go away....how hard is it changing the rear bearings????
Thread Starter
Le Mans Master
Joined: Sep 2002
Posts: 6,689
Likes: 0
From: Michigan
St. Jude Donor '15
I picked the car up from the mechanic today. (It took a week for them to get the Schaeffer's gear lube plus they were backed up.) He said that it still whines but they couldn't find any other problem. The diff had some small metal particles in the old oil, and is seeping a bit from the seals. He suggested that I put a few thousand miles on it this summer and see what happens to the whine. If it get worse, he can do a rebuild next winter. I've only driven the car a few miles and the whine seems less. I'll have to see what I hear over the next few weeks.
