Rear clunking sound
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Senior User
Joined: Mar 2008
Posts: 243
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From: Princeton, MN
Rear clunking sound
I have a clunking sound coming from the rear of my X when I stop and take off. The sound does not happen until the vehicle has been driven for a few miles. After it has been driven, I will get one clunk when I stop. When I take off I will get one clunk as the vehicle starts to accelerate, and another clunk as I give it a little more gas. Any Ideas on what could be the cause of this?
I do not get the sound when I shift from park to drive, or drive to reverse.
I do not get the sound when I shift from park to drive, or drive to reverse.
Posting Guru
Joined: Sep 2008
Posts: 2,498
Likes: 2
The problem is:
The Slip-Yoke the rear drive shaft bolts to on the rear-end needs greased..........
The fix:
Take rear drive shaft loose from rear-end, remove slip-yoke, grease spline with a good high-temp. grease.
Reinstall Slip-Yoke and drive shaft, your good to go for another 50,000 miles or so.
The Slip-Yoke the rear drive shaft bolts to on the rear-end needs greased..........
The fix:
Take rear drive shaft loose from rear-end, remove slip-yoke, grease spline with a good high-temp. grease.
Reinstall Slip-Yoke and drive shaft, your good to go for another 50,000 miles or so.
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Is it it possible to tap and add a grease zirt?
Posting Guru
Joined: Sep 2008
Posts: 2,498
Likes: 2
The sooner you get it repaired the better, it won't get any better only worse. Every time it clunks it puts stress on the U-Joint and the splines of the Slip-Yoke.
It dosen't have to be fixed tomorrow, but as soon as soon as possiable. About 75.00 from a good shop is what I would guess.
It dosen't have to be fixed tomorrow, but as soon as soon as possiable. About 75.00 from a good shop is what I would guess.
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
You could easily do it yourself in 20 minutes. I wouldn't bother with a zerk installation. You might never have the problem again as long as you have the truck. Mine had the problem when I bought mine (got me a better deal) but went away before I had a chance to fix it and that was 2 years ago. I would say it is a 1 time problem if that.
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Senior User
Joined: Mar 2008
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From: Princeton, MN
Just to make sure this is the slip yoke problem. Mine Does not clunk when I put it in gear. Only when I come to a stop (or near stop) and again when I take off. I hope it is the slip yoke since the fix appars to be quite easy. Thanks again for all the info.
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Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Probably got lucky this time.
Senior User
Joined: Jan 2006
Posts: 157
Likes: 0
From: Gary, IN
Revisiting an old thread.
I plan on greasing the slip yoke on rear to get rid of that dreaded clunk on shifting into gear or taking off.
My question is this: Has anyone or is it typical to do the front as well? Reason I ask is I noticed the front u-joints when replacing my sway bar bushings. Seems like an easy task. I've read the article on doing the rear. Is the front the same?
I plan on greasing the slip yoke on rear to get rid of that dreaded clunk on shifting into gear or taking off.
My question is this: Has anyone or is it typical to do the front as well? Reason I ask is I noticed the front u-joints when replacing my sway bar bushings. Seems like an easy task. I've read the article on doing the rear. Is the front the same?
Fleet Mechanic
Joined: Dec 2005
Posts: 1,254
Likes: 120
Here is a forum that talks about greasing the yoke.
https://www.ford-trucks.com/forums/1...my-2000-a.html
Tim M
https://www.ford-trucks.com/forums/1...my-2000-a.html
Tim M
Senior User
Joined: Mar 2012
Posts: 114
Likes: 0
The problem is:
The Slip-Yoke the rear drive shaft bolts to on the rear-end needs greased..........
The fix:
Take rear drive shaft loose from rear-end, remove slip-yoke, grease spline with a good high-temp. grease.
Reinstall Slip-Yoke and drive shaft, your good to go for another 50,000 miles or so.
The Slip-Yoke the rear drive shaft bolts to on the rear-end needs greased..........
The fix:
Take rear drive shaft loose from rear-end, remove slip-yoke, grease spline with a good high-temp. grease.
Reinstall Slip-Yoke and drive shaft, your good to go for another 50,000 miles or so.
Not buying it new I did not know they had been there at one time
New User
Joined: Apr 2012
Posts: 5
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PPS: The splined end of the rear drive shaft in my f-250 is already factory-coated with blue Teflon, indicating that Ford has already tried to solve this recurrent problem.
FTE Chapter Leader
Joined: Nov 2010
Posts: 30,595
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From: N. IL
A few more pic's if needed and a side job or two while in the neighborhood...
https://www.ford-trucks.com/forums/1...nion-seal.html
https://www.ford-trucks.com/forums/1...nion-seal.html