Clunk

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Nov 11, 2005 | 07:50 PM

claydr54

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Clunk

Everytime I take off from a dead stop; there is a clunk coming from somewhere in the drive train. I don't think its the U-joints because sometimes my truck will move 2 - 5 feet before it happens. Has anyone else experienced this?

Nov 11, 2005 | 08:30 PM

PowerstrokeJunkie

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Joined: Jul 2005

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From: 21791

this is the infamous driveshaft clunk. what you need to do, is drop the driveshaft, mark both halves, and grease the splines inside. i believe the grease is a special kind, i think its blue. someone can elaborate.

Nov 12, 2005 | 01:51 AM

Fis Teck

Mountain Pass

Joined: May 2005

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To check the slip yoke and the u-joints do it in nutral and no e-brake block the wheels so it will not roll. Move the u-joints in each direction of rotation check for play same with yoke. If it u-joints feels loose relace them. If yoke moves to much in splines lubing it
may only mask it for a short time.

Nov 12, 2005 | 05:28 AM

celjel

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From: Ripley NY

I just replaced my driveshaft because the splines were worn badly. I had the same type of clunk and the u-joints were all tight. I believe the grease that you should use is XG-8.

Nov 13, 2005 | 05:25 PM

Fis Teck

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Did you have it rebuilt or get a new one?

Nov 14, 2005 | 04:21 AM

celjel

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From: Ripley NY

I got a new one as I priced it to be rebuilt and it was like less than $100 difference, and the new one came with new carrier bearing and all new u-joints. I was shocked that they cost what they do, mine was $550,00 from the dealer. The new one is much beefier than the old one. The Ford tech said that they did have problems with them in th early 99's.