Rear diff shudder
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Senior User
Joined: Jan 2004
Posts: 138
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From: Prince George,BC
Rear diff shudder
Took the truck in to dealer Saturday for rear shudder while turning at low speeds.They were going to put anti chatter additive in to fix.Went to pick up and they advised about the T.S.B., and are now going to replace clutch.Nice to see that the consumer doesn't allways have to point these things out.Will advise how it works.
Senior User
Joined: Feb 2004
Posts: 185
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From: Vancouver, WA
WhiteNight,
I'll bet you have the limited slip diff., right?
The shudder you feel at slow speeds is a strong clutch and very effective limited slip diff.
I spoke with my mechanic about the same problem. He said that he'd replace it for me, but the fix is putting in a clutch that turns under a lower torque, thus weakening the effectiveness of the limited slip.
I decided against it.
I'll bet you have the limited slip diff., right?
The shudder you feel at slow speeds is a strong clutch and very effective limited slip diff.
I spoke with my mechanic about the same problem. He said that he'd replace it for me, but the fix is putting in a clutch that turns under a lower torque, thus weakening the effectiveness of the limited slip.
I decided against it.
New User
Joined: Mar 2005
Posts: 3
Likes: 0
? Locking Front End FX4
Hi folks...
I know we are talking a bit about the rear end shudder... i've got the same.. but as one stated i'll take the shudder for the more firm lock up... but here is my ? it seems my truck has a locking frontend too... on even turf both tires dig and in a tight turn 'dirt' mind you... the truck seems to get into a strong bind/frame twist without slipping the tires... is there a way to learn if the front is in fact a locking front end..??
thanks much
Scott
www.fancyfords.com
I know we are talking a bit about the rear end shudder... i've got the same.. but as one stated i'll take the shudder for the more firm lock up... but here is my ? it seems my truck has a locking frontend too... on even turf both tires dig and in a tight turn 'dirt' mind you... the truck seems to get into a strong bind/frame twist without slipping the tires... is there a way to learn if the front is in fact a locking front end..??
thanks much
Scott
www.fancyfords.com
Mountain Pass
Joined: Dec 2004
Posts: 221
Likes: 2
From: Calgary, Alberta
Blackbird, you are probably experiencing what most 4X4's do when in 4 wheel drive. The front wheels are turning at a different speed than the rears, and with the differentals locked through the transfer case via the drive shafts you get torque lockup. If you read the owners manual it will talk about driving on dry surfaces in 4X4. You porbably don't have a locking or LS front diff from the factory. Just my 2 cents worth. 
Last edited by bdmcdonald; Mar 17, 2005 at 12:26 PM.
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Freshman User
Joined: Jan 2005
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From: pgh. pa
turn steering wheal hard right put a chalk mark on axial flang. mark other side to. DRIVE PULL OVER AND LOOK IF CHALK MARKS MOVED IN 2 WH .IF SO THEN AXIAL ARE TURNING .SHOOD NOT BE.
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New User
Joined: Mar 2005
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yes i realize you are right about driving on 'dry surfaces' but when i was working the truck in 4 wheel drive i was in about 1.5 feet of muddy water.... both front wheels where sending rooster tails both in drive and reverse as well as in a turn right or left and even in the wet conditions as you say you can feel the torque begin to stiffen up.. i learned a very hard lesson some years ago with a front dana 30 on a bronco that was an open differential and having it locked up on asphalt... split the carier among other items... ouch.... let me know your thoughts on this if you don't mind.. thanks much...
Scott
Scott
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