Transmission not the problem for vibrations.
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Senior User
Joined: Jun 2006
Posts: 428
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From: Alberta
Transmission not the problem for vibrations.
Took my truck into FORD today and got them to take it for a little drive. Diagnosis is a bad U joint. Now from what he was saying that this has to be replaced asap. He quoted me around $300 to $400 for the repair. Thats not all. Need to replace the seal where the drive shaft connects to the diff. I think this is called the yoke? Another $300 to replace and $20 for the seal.
What happens when you leave this too long?
What happens when you leave this too long?
Elder User
Joined: Nov 2003
Posts: 508
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From: Colorado
Bearings in the joints dray up and the drive shaft falls out... Drive shaft wobbles and makes other parts wear un-naturally like the tail shaft of the trans or puts extra wear on the pinion gear.
With the seal at the yoke being bad you could run the chance of the diff running low on gear oil...
With the seal at the yoke being bad you could run the chance of the diff running low on gear oil...
Junior User
Joined: Mar 2004
Posts: 59
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From: Manassas, VA
Get it fixed ASAP. I just has the same thing happen. Broke a roller bearing in the rear most u-joint.
@ 108,000k I just had them replace the whole 2 piece drive shaft for $1024. (3 new u-joints and carrier bearing)
@ 108,000k I just had them replace the whole 2 piece drive shaft for $1024. (3 new u-joints and carrier bearing)
Elder User
Joined: Jul 2005
Posts: 716
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From: memphis
Pull the Drive shaft and take it to your local NAPA machine shop. 6 bolts if i remember right. 4 at the rear-end and 2 at the center bearing.
Splicer makes a very strong u-jont. Autozone or NApa should have them.
If you don't Tow Extremely heavy you may want to consider the u-joints with the grease fittings, they are hollow to allow service , but you give up a little strength compared to the non-service which should be solid.
There should be some signs of a leak, and your rear end oil level should be low, if the rear yoke is leaking.
Splicer makes a very strong u-jont. Autozone or NApa should have them.
If you don't Tow Extremely heavy you may want to consider the u-joints with the grease fittings, they are hollow to allow service , but you give up a little strength compared to the non-service which should be solid.
There should be some signs of a leak, and your rear end oil level should be low, if the rear yoke is leaking.
Last edited by hott-rodd; Jan 24, 2007 at 07:28 AM.
New User
Joined: Jan 2007
Posts: 4
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From: Lafitte LA and Osyka MS
Bad U joint
I may have the same problem. Feels like I'm on a bumpy road when traveling at 45mph. I don't feel it at other mph's not to say that it's not doing it. Will have to bring to the dealer and have it checked out.
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Senior User
Joined: Jun 2006
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From: Alberta
I dont have a bumpy feeling, It's more of a vibration throughout the truck. Most noticible in the gas pedal and in the floor boards. Vibration intensity goes up and down depending what gear and what rpm range I am in.
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Senior User
Joined: Jun 2006
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From: Alberta
HA! No u joint problem found. Got the seal replaced. Bout it. Diagnosis of problem now, tire wear is what causing the vibrations. When I went ahead and replaced my balljoints in the summer, I didnt get a wheel alingment done. Now I'm paying for it with new tires. Bout time I got some new mudders on there anyways!
Senior User
Joined: Aug 2001
Posts: 300
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From: Kentucky
I had a high frequency- low speed vibration in my 05 PSD right from the factory. It came in at about 48 mph and left at 58 mph. It was the driveshaft out of balance. Got it done at Ford garage and all is well.
Bill in KY
Bill in KY