Vibration at 75

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Jan 2, 2005 | 03:41 PM

#16

18vtx00

Fleet Mechanic

Joined: Nov 2004

Posts: 1,427

Likes: 10

From: Templeton, Massachussetts

Quote:

Originally Posted by f350xlt460

I had the same problem with my truck, but it turns out that when i replaced my clutch, i put the driveshaft back in 180 off. Fixed that problem and the vibration went away. Check for missing tire balence weights. Every 1oz out a tire is at 60 mph is something like 12 lbs of force to vibrate your truck.

it can only get out of phase if someone put in wrong to begin w/.

Jan 2, 2005 | 05:12 PM

#17

73scout

Thread Starter

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Joined: May 2003

Posts: 39

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Quote:

Originally Posted by 18vtx00

it can only get out of phase if someone put in wrong to begin w/.

Mine might be out of phase, when I bought the truck it had a bad u joint and I made the dealer change it and knowing the jerks at the shop they may have put it in out of phase.

Jan 2, 2005 | 05:35 PM

#18

18vtx00

Fleet Mechanic

Joined: Nov 2004

Posts: 1,427

Likes: 10

From: Templeton, Massachussetts

Quote:

Originally Posted by 73scout

Mine might be out of phase, when I bought the truck it had a bad u joint and I made the dealer change it and knowing the jerks at the shop they may have put it in out of phase.

i always use a crayon to mark it before i remove it.
but i suppose all do not.

Jan 2, 2005 | 06:59 PM

#19

73scout

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Quote:

Originally Posted by 18vtx00

i always use a crayon to mark it before i remove it.
but i suppose all do not.

I marked it with a magic marker when I took it out, but it doesn't mean that it isn't in wrong. I went to this site http://www.vibratesoftware.com/html_...haft%20Phasing
and I'm going to check the phasing and driveshaft angles just in case.

Thanks for the help and info.

Feb 5, 2005 | 06:51 PM

#20

ImConfused666

Junior User

Joined: Jan 2005

Posts: 71

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In my case it was the centering ball joint in the CV on the rear shaft. I could get a replacement ball joint but the rubber boot around the joint is shot and no way to replace. Wonderful. Answer for me - buy a new shaft. My local dealer was happy to give me the shaft to go with it ($400). Oh well, it's only 5 years old but has 178,000 miles so I guess I shouldn't complain too much. I'll keep the old shaft and try to see if there is a way to replace the boot and rebalance the shaft. Meanwhile, I now know to keep a check on that ball joint.

Feb 5, 2005 | 07:47 PM

#21

73scout

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Joined: May 2003

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Quote:

Originally Posted by ImConfused666

I haven't found anything wrong with the truck (YET!), but I know it is not in the engine. I am going to keep looking for something worn out. I am also going to find a shop that can balance the driveshaft to see if that will make difference. What I have found curious about this topic is that most people on here have 2 drive shafts with a carrier bearing and I only have one shaft without the carrier, I guess the long wheelbase trucks are more popular that I thought.

Feb 5, 2005 | 09:05 PM

#22

MRBASS

Elder User

Joined: Feb 2000

Posts: 737

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From: LAKE FORK TEXAS

Wasnt there some kind of recall on the 01 and early 02's for some sort of problem with the rear end? Not trying to cause unnecessary STRESS , But might wanna drop the oil in the rear end and check it out.

Feb 6, 2005 | 12:26 PM

#23

ImConfused666

Junior User

Joined: Jan 2005

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Mine is a '99 F250 4x4. Short bed. I do have two shafts (one for front wheels). It's a good thing I have the front shaft and differential or my truck would be out of service right now. The shaft was backordered. I've probably got the only 7.3L front wheel drive truck on the road. Although I have not had any other problems, I do plan to change the oil in both differentials. After 178,000 miles is a long ways without anything other than standard maintenance. I was even thinking I might change the fluid in the transmission and maybe install a new filter. Kind of radical.... ;-)