Chattering when turning
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Tuned
Joined: Feb 2006
Posts: 354
Likes: 9
Chattering when turning
‘00 F250 w/ limited slip carrier.
so, when pulling a trailer and making a turn, I feel chattering coming from the rear axle. Have driven truck for 50-70k with the limited slip carrier (taken from a crashed truck) with no issues. I can only feel it with a load or trailer attached and it just recently started doing this.
I removed and disassembled the carrier to inspect the clutches,, they appear to need replaced, but not metal on metal, yet. Reassembled and installed for now.
Also found the drive line carrier bearing rubber boot allows me to shake the drive shaft more that’s I think it should.
First question,, do you think the chattering I’m feeling is the bad clutches? Or carrier bearing on drive line?
Second,.. where can I find a carrier clutch rebuild kit under $300 (seems pricey).
Third…if drive shaft carrier bearing needs replaced,, price for the bearing?
Thanks in advance..
so, when pulling a trailer and making a turn, I feel chattering coming from the rear axle. Have driven truck for 50-70k with the limited slip carrier (taken from a crashed truck) with no issues. I can only feel it with a load or trailer attached and it just recently started doing this.
I removed and disassembled the carrier to inspect the clutches,, they appear to need replaced, but not metal on metal, yet. Reassembled and installed for now.
Also found the drive line carrier bearing rubber boot allows me to shake the drive shaft more that’s I think it should.
First question,, do you think the chattering I’m feeling is the bad clutches? Or carrier bearing on drive line?
Second,.. where can I find a carrier clutch rebuild kit under $300 (seems pricey).
Third…if drive shaft carrier bearing needs replaced,, price for the bearing?
Thanks in advance..
Laughing Gas
Joined: Nov 2020
Posts: 994
Likes: 367
From: Republic of Texas
If you have chattering while turning in the limited slip you likely do not have the proper amount of limited slip treatment in the rear end oil. Get a bottle of limited slip friction modifier and follow the instructions on it.
Also you should not have any play in the drive shaft, if you can move it by hand check the carrier bearing and the U-joints. None of it is a hard fix but the joints will cost you about $100 each for quality parts.
Also you should not have any play in the drive shaft, if you can move it by hand check the carrier bearing and the U-joints. None of it is a hard fix but the joints will cost you about $100 each for quality parts.
Thread Starter
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Tuned
Joined: Feb 2006
Posts: 354
Likes: 9
If you have chattering while turning in the limited slip you likely do not have the proper amount of limited slip treatment in the rear end oil. Get a bottle of limited slip friction modifier and follow the instructions on it.
Also you should not have any play in the drive shaft, if you can move it by hand check the carrier bearing and the U-joints. None of it is a hard fix but the joints will cost you about $100 each for quality parts.
Also you should not have any play in the drive shaft, if you can move it by hand check the carrier bearing and the U-joints. None of it is a hard fix but the joints will cost you about $100 each for quality parts.
More Turbo
Joined: Mar 2009
Posts: 506
Likes: 5
From: South Florida
Have you done a rear end fluid change recently? If not, I would start there using new gear oil and up to 8oz of friction modifier. Some oils do come with friction modifiers already included in the oil but I find that you might still need some.
Thread Starter
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Tuned
Joined: Feb 2006
Posts: 354
Likes: 9
When you say the rubber damper seems bad...is it broken and or deteriorated cause mine is not broken and seems to have some movement which I think is ok.
Have you done a rear end fluid change recently? If not, I would start there using new gear oil and up to 8oz of friction modifier. Some oils do come with friction modifiers already included in the oil but I find that you might still need some.
Have you done a rear end fluid change recently? If not, I would start there using new gear oil and up to 8oz of friction modifier. Some oils do come with friction modifiers already included in the oil but I find that you might still need some.
I’d be willing to agree the carrier bearing rubber has some deterioration due to its age. So, prolly will replace as a precaution
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,353
Likes: 5,946
From: Lake Hartwell, GA
Is it possible your rear tires are gripping/scrubbing with the added weight on the rear?
I used Amsoil gear oil my first time I changed the fluid. It claimed to have friction modifier in it. I had to put a full bottle of XL-3 into the differential anyway to stop the chattering/binding.
I have changed it twice since then and no additional XL-3 has been added. I suspect the residual fluid from the first change was not providing enough "friction modifier". Add it slowly and test it out after each dose.
I used Amsoil gear oil my first time I changed the fluid. It claimed to have friction modifier in it. I had to put a full bottle of XL-3 into the differential anyway to stop the chattering/binding.
I have changed it twice since then and no additional XL-3 has been added. I suspect the residual fluid from the first change was not providing enough "friction modifier". Add it slowly and test it out after each dose.
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