Vibration at 60 MPH
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7th Gear
Joined: Aug 2006
Posts: 7
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Vibration at 60 MPH
Good afternoon
1993 F250 XLT with 135,000 miles, bought it from a guy that used it to tow his camper. runs down the road great with no load on it, as soon as it gets a load it will vibrate at 60 MPH, sometime hear it at 45 MPH. By load I mean a 1600 lbs slide in camper or an 18' dual axel trailer. there was paly in the driveshaft support bearing and one of the universal joints had a hitch in it, replaced all with Spicer bearings. Had the rear wheels off and cannot find anything that feels loose. going to pull the dif cover next. Anyone experiance this type of issue?
Thanks
Vern
1993 F250 XLT with 135,000 miles, bought it from a guy that used it to tow his camper. runs down the road great with no load on it, as soon as it gets a load it will vibrate at 60 MPH, sometime hear it at 45 MPH. By load I mean a 1600 lbs slide in camper or an 18' dual axel trailer. there was paly in the driveshaft support bearing and one of the universal joints had a hitch in it, replaced all with Spicer bearings. Had the rear wheels off and cannot find anything that feels loose. going to pull the dif cover next. Anyone experiance this type of issue?
Thanks
Vern
Mountain Pass
Joined: Oct 2021
Posts: 214
Likes: 60
Fast vibration as in driveshaft speed or Slow vibration as in wheels/tires?
I sensed mine in Neutral at 55 and it was the pinion yoke nut was loose, despite having perfect Ujoints.
Not much inside the diff that can vibrate the truck without making noise as well.
I sensed mine in Neutral at 55 and it was the pinion yoke nut was loose, despite having perfect Ujoints.
Not much inside the diff that can vibrate the truck without making noise as well.
Lead Driver
Joined: Apr 2002
Posts: 5,316
Likes: 1,243
Speed specific vibration from a wheel out of balance is easy to figure out which wheel it is. You can tell if it's only one. Now if two or more wheels are out that can be harder to hear feel where it's coming from.
I'm currently getting a weird tire whine. It's not in sync with anything and only sounds when at 50 mph or higher. It's like a hum, it's rhythmic and repeats one hum every 3 or 4 seconds. I know it's tire related as when I put on my winter tire set the hum goes away.
Next winter I'm going to change wheels one at a time to isolate which tire is singing. I think it's right front.
i ain't rite
Joined: Mar 2005
Posts: 65,505
Likes: 5,563
From: Marlboro Mental Hospital.
you time a driveline by having all universals in the same orientation. if you have one 90 degrees out from the others it will give you a vibration...this is very easy to do with a two piece driveshaft that does not have a keyed slip yoke
Tuned
Joined: Jun 2013
Posts: 440
Likes: 61
From: Craigmont, Id
https://www.ford-trucks.com/forums/4...more-time.html
Lots of information out there on the subject. You tube will give you some visual information.
Lots of information out there on the subject. You tube will give you some visual information.
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Lead Driver
Joined: Apr 2002
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I call it proper alignment. Hadn't used or heard the term timed before. Wanted to make sure I wasn't missing something. Thanks.
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7th Gear
Joined: Aug 2006
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I checked the phasing and they all line up according to what I have read. I took a picture of the drive shaft at the dif, i don't see others with the big round piece of metal on them, and then another at the support bearing showing the angle. I will pull the rears off and have the balanced checked.
Thank you
Thank you
Tuned
Joined: Jun 2013
Posts: 440
Likes: 61
From: Craigmont, Id
Do not believe I have ever seen that hunk of metal on a drive line either. Makes me think it is some form of balancer though. Do you have a drive line repair shop in your area? If so most are able to check drive lines for balance. Is the front u-joint in the same phase as the back ones? That would be the one that could be out of time. Unless the back line was built wrong there is no way it can get out of time as it is welded, the issue would be back half being off a spline or even 90 degrees out of time due to the slip joint. How much play if any is in that slip joint?
Cross-Country
Joined: Apr 2018
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I use to own a truck camper with a weight of around 2500 pounds but eventually sold it. After driving it for about 500 miles I noticed that It would vibrate at around 60 to 65 mph. When I took to the mechanic he said that trucks would do that after carrying a heavy load for a long amount of time and then removing the heavy load. I can not remember what exactly had to be fixed because it has been a few years since this happened.
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7th Gear
Joined: Aug 2006
Posts: 7
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Good afternoon
I had the rear tires balanced with no change in the vibration. I did not mention that I have full time 4-wheel drive, but I do not feel anything in the steering wheel, I read wear the full time can cause issues.
I had the rear tires balanced with no change in the vibration. I did not mention that I have full time 4-wheel drive, but I do not feel anything in the steering wheel, I read wear the full time can cause issues.
Logistics Pro
Joined: Jun 2017
Posts: 3,963
Likes: 512
From: Edmond, OK
If there was no change you could always get the front tires rebalanced.
Since your truck is full-time 4x4 that is suspect. Were aftermarket parts installed? I've only used the 4x4 on my truck a few times, I always drive with the front hubs unlocked.
Since your truck is full-time 4x4 that is suspect. Were aftermarket parts installed? I've only used the 4x4 on my truck a few times, I always drive with the front hubs unlocked.
Lead Driver
Joined: Apr 2002
Posts: 5,316
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I lock mine in for at least 50 miles per oil change, to keep things limber and lubed.
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