Clunk??
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Joined: Jun 2007
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From: Clarington Ohio
Clunk??
Hello, maybe i can get some help here. Well this clunk just developed on my truck, 38,000 miles. When i start off from a dead stop i get a clunk and when it shifts from 1st to 2nd. After that it dissapears. 
So i got under and checked the u-joints, there fine. What else could it be? Rear end going out? Or something like that? 
Thanks
So i got under and checked the u-joints, there fine. What else could it be? Rear end going out? Or something like that? Thanks
Senior Member
Joined: Nov 2005
Posts: 17,118
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From: Burleson, Texas
Originally Posted by shaunakadub
TSB out from Ford about this.
Take it to the dealer and they will grease the yoke with Krylon. It'll make it go away but doesn't last forever. I just had it done a few weeks ago.
Take it to the dealer and they will grease the yoke with Krylon. It'll make it go away but doesn't last forever. I just had it done a few weeks ago.
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Joined: Jan 2005
Posts: 119
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From: Madison WI
Welder:
The grease called for in the tsb is Teflon fortified. The other thing to check is the aft u-joint. That joint has a history of failure on our trucks. (try finding one in stock at a dealership - it was on backorder when mine failed a while ago) Is was bad on my truck, and the service tech had to remove the d-shaft to find it. when it was installed it was a barely perceptable looseness. With the d-shaft removed it was much easier to sense. I am not sure why it was hard to find while it was installed.
The u-joint fixed my clunk, now I just have my guy grease the slip yoke every other oil change and it is not an issue. He even keeps the Teflon grease in stock for me and his other F-150 driving customers.
BJ
The grease called for in the tsb is Teflon fortified. The other thing to check is the aft u-joint. That joint has a history of failure on our trucks. (try finding one in stock at a dealership - it was on backorder when mine failed a while ago) Is was bad on my truck, and the service tech had to remove the d-shaft to find it. when it was installed it was a barely perceptable looseness. With the d-shaft removed it was much easier to sense. I am not sure why it was hard to find while it was installed.
The u-joint fixed my clunk, now I just have my guy grease the slip yoke every other oil change and it is not an issue. He even keeps the Teflon grease in stock for me and his other F-150 driving customers.
BJ
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Joined: Jun 2007
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From: Clarington Ohio
Ok thanks. But i am a little confused here, when you mean aft...you are talking about the rear driveshaft right? lol...ya im a dumbA*$ . And the teflon fortified grease where could I get that? The ford stealship? Cuz i do all of my own mantience on my truck and im just a little picky on who touches it.
Thanks
Thanks
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Joined: Nov 2007
Posts: 509
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From: Marrero,Louisiana
yes you have to pay for it to be done.a tsb is not a recall.a tsb is a technical service bulletin which is to let the tech know that if this concern is evident do this to fix it.i see so many people that think tsb's are recalls.if you really look the are alot of tsb's on these trucks.any way this is a common problem.i only had to do mine once im pushing 60k.some people look for the slightest hint of clunk after this service is done.so every oil change is a bit excessive.btw it is the front drive shaft.the peice that goes into the rear of the transmission.put that grease on the splines inside that shaft.
Last edited by italiano; Jan 17, 2008 at 08:49 PM.