Found vibration...
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Posting Guru
Joined: Apr 2000
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From: NorCal
Found vibration...
I hope..
For the past month or so I've had an odd vibration mainly between 40-45 MPH and 60-65MPH. Other speeds it was fine. U-joints checked out fine, assummed it was internal!
Especially since i could hear no noises... Untill three nights ago. I finally heard a repetitive clunk between 15-20 MPH. I got home and crawled underneath checking my rear u-joints again, still no twisting slop. I moved up to the transfer case where there are two u-joints and a knuckle. Pushed up on the driveline and CLUNK! There it is. 
The next day I purchased three new Spicer u-joints and began replacing the two upper ones first. I removed the driveline side of the knuckle first and discovered a CV joint that had destroyed itself. The seal was damaged and the needle bearings inside the ball were dust. In the process they scarred the race that's welded to the top of the driveline. Not to mention the weight that flew off the driveline while removing the first u-joint (never had that happen before). So my $90 u-joint replacement project became a trip to the driveline shop. 
He'll have to mic the race to see if it can be salvaged and order a new transfer case yoke. Which contains a new bearing, ball, seals, etc. I'm waiting for a call to see how much the damage is gonna add up to. I just hope this takes care of it....
If only Spicer had made that joint servicable... Done with rant.
For the past month or so I've had an odd vibration mainly between 40-45 MPH and 60-65MPH. Other speeds it was fine. U-joints checked out fine, assummed it was internal!
Especially since i could hear no noises... Untill three nights ago. I finally heard a repetitive clunk between 15-20 MPH. I got home and crawled underneath checking my rear u-joints again, still no twisting slop. I moved up to the transfer case where there are two u-joints and a knuckle. Pushed up on the driveline and CLUNK! There it is. The next day I purchased three new Spicer u-joints and began replacing the two upper ones first. I removed the driveline side of the knuckle first and discovered a CV joint that had destroyed itself. The seal was damaged and the needle bearings inside the ball were dust. In the process they scarred the race that's welded to the top of the driveline. Not to mention the weight that flew off the driveline while removing the first u-joint (never had that happen before). So my $90 u-joint replacement project became a trip to the driveline shop. He'll have to mic the race to see if it can be salvaged and order a new transfer case yoke. Which contains a new bearing, ball, seals, etc. I'm waiting for a call to see how much the damage is gonna add up to. I just hope this takes care of it.... If only Spicer had made that joint servicable... Done with rant.
Last edited by cgl; Apr 12, 2006 at 04:51 PM.
Post Fiend
Joined: Jul 2005
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From: 21791
that is a Double Cardon type of u-joint. the center piece with two u-joints lessens the stress on the angle, so more power can be transmitted through it at a sharper angle. it makes it run smoother, especially at higher speeds.
to the question- complete drivelines from the transfercase to axle run right about $550, and thats overpriced from Ford. good luck!
to the question- complete drivelines from the transfercase to axle run right about $550, and thats overpriced from Ford. good luck!
Thread Starter
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Posting Guru
Joined: Apr 2000
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From: NorCal
Well $212 later my noises and vibrations are gone!!!! 
He replaced all three u-joints with new Spicer grease-able ones and had to replace the transfer case yoke with a new Spicer one. As well as lathing the CV bearing stud and balancing the whole setup. Unfortunately I forgot the ask if there's any way to get a servicable cv joint on that double cardon, but atleast I can service the u's!
I did a little searching and discovered that for around $100 I could've rebuilt the setup myself... IF I wouldn't have thrown a weight and scarred the bearing stud that is...
Here's the site I found...
http://www.quad4x4.com/Ford%20Drive%20Shaft.htm
He replaced all three u-joints with new Spicer grease-able ones and had to replace the transfer case yoke with a new Spicer one. As well as lathing the CV bearing stud and balancing the whole setup. Unfortunately I forgot the ask if there's any way to get a servicable cv joint on that double cardon, but atleast I can service the u's!
I did a little searching and discovered that for around $100 I could've rebuilt the setup myself... IF I wouldn't have thrown a weight and scarred the bearing stud that is...
Here's the site I found...
http://www.quad4x4.com/Ford%20Drive%20Shaft.htm
