rear differential
Thread Starter
5th Gear
Joined: Jun 2010
Posts: 5
Likes: 0
From: West kelowna British Columbia
rear differential
I have a 2000 and had it repaired for grinding noise makin geft & right turns. The dealer did not add the lubricant and I dorve it for a year. Next spring there was the same leak back under therear end and the mosie was back. I found out that it must be added from reading a forum and went back. They refunded me my money and made sure it was added. Year 4, and it's nack in again. This time they say the clutches are gone and need to be replaced but it's not caused by leaving out the lubricant. I asked that first time what the future problmes may occur and as told that they would look after it. Anyone know about this?
Pro
Joined: May 2006
Posts: 723
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From: MOTOWN / Fort Dix NJ MI
I use the Mobil one Syn lub with the LS additive already in it!! no problems.......
you should drain the fuild and add it yourself..... some people just add a little additive and the clicking goes away.. I have a 2000 and I have never had a problem with mine. Diff was rebuilt few months ago when I put the 4.10's in
you should drain the fuild and add it yourself..... some people just add a little additive and the clicking goes away.. I have a 2000 and I have never had a problem with mine. Diff was rebuilt few months ago when I put the 4.10's in
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The limited slip fluid allows the clutches to slip smoothly when they need to slip (in tight turns).
Without the limited slip fluid, the clutches will bind, chatter and pop during tight turns.
Jack the rear of the car off the ground. If your clutches are still good, you will not be able to turn one rear wheel by hand when the car is in gear. It should take about 80 foot /lbs of force to break it free amd get it to move. If the wheels turn easily by hand, the clutches are damages and worn out and will require replacement.
Without the limited slip fluid, the clutches will bind, chatter and pop during tight turns.
Jack the rear of the car off the ground. If your clutches are still good, you will not be able to turn one rear wheel by hand when the car is in gear. It should take about 80 foot /lbs of force to break it free amd get it to move. If the wheels turn easily by hand, the clutches are damages and worn out and will require replacement.
Thread Starter
5th Gear
Joined: Jun 2010
Posts: 5
Likes: 0
From: West kelowna British Columbia
I am back again after a couple of months and the noise is back. Personally I think the dealership caused the problem to come back by not adding the additive in the first place and now it has caused damage to the clutches. After being told if I had anymore trouble they would look after me they are changing it to they did nothing wrong in the first place that will be 900.00 pelase.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If you cant work it out with the Stealership,,,contact GM Custormor Assistance Center. The number is in the owners manual in the back. Or you can google it.
Tell them your problems and they will assign you a case number and look into it. The squeeky wheel gets the grease.
BC
Tell them your problems and they will assign you a case number and look into it. The squeeky wheel gets the grease.
BC
Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
Jack the rear of the car off the ground. If your clutches are still good, you will not be able to turn one rear wheel by hand when the car is in gear. It should take about 80 foot /lbs of force to break it free amd get it to move. If the wheels turn easily by hand, the clutches are damages and worn out and will require replacement.
