Vibration can't figure it out

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May 27, 2021 | 01:37 PM

#16

z31freakify

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From: Las Cruces New Mexico

Check your leaf spring bushings they could be bad causing the whole truck to vibrate.

May 27, 2021 | 03:44 PM

#17

farmert

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From: western SD

Being the drive line was disassembled, was it reassembled with the u joints in sync?

May 28, 2021 | 06:51 AM

#18

pwjackson42

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Quote:

Originally Posted by farmert

Being the drive line was disassembled, was it reassembled with the u joints in sync?

good point I will check that. Had this vibration before the ujoints were done though.

Jun 8, 2021 | 12:52 PM

#19

pwjackson42

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update: Took my drive shaft to the shop to get balanced. Fingers crossed that this was the issue.

Sep 7, 2021 | 09:55 AM

#20

pwjackson42

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Well........still have the vibration.....

Tires balanced, replaced two rear tires
Driveshaft balanced with new ujoints and carrier bearing
front leaf spring bushings were replaced about 20,000 miles ago and I just recently put new rear leafs in with new bushings.

Still same vibration around 42 mph...........can also feel it at higher speeds.......Also seems like you can hear a drone
Anything else to check/look for?

Sep 7, 2021 | 10:02 AM

#21

z31freakify

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From: Las Cruces New Mexico

That only leaves the tires.
move those new tires to the front and it you have some aggressive thread the truck will hum and vibrate no matter what.

Sep 7, 2021 | 10:21 AM

#22

96 OBS

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Joined: Oct 2019

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From: Fowler Colorado

Have you done shocks? That made mine have a death wobble every once in a while. Also make sure the trans mounts are tight

Sep 7, 2021 | 04:48 PM

#23

BuddyBarnes

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From: Fl.

Quote:

Originally Posted by 96 OBS

Have you done shocks? That made mine have a death wobble every once in a while. Also make sure the trans mounts are tight

Check for a out of round tire. If you have not already.

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Sep 8, 2021 | 07:56 AM

#24

helifixer

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From: Chino Valley, Arizona

do you have an aftermarket down pipe?
if so when not installed right and they rub the pinch seam of the cab they can make strange vibrations.

Sep 8, 2021 | 10:48 AM

#25

Ford Firefighter

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From: South Tx

If you have a manual transmission, you could have a Dual Mass Flywheel and if the springs are shot it will cause a very difficult to track down vibration. Took us months to figure it out

Sep 9, 2021 | 06:32 AM

#26

pwjackson42

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Quote:

Originally Posted by BuddyBarnes

Check for a out of round tire. If you have not already.

just had two new rear tires put on. Previous ones had only 5,000 miles on them and out of round. Nothing changed with the new ones.

Sep 9, 2021 | 06:33 AM

#27

pwjackson42

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Quote:

Originally Posted by Ford Firefighter

If you have a manual transmission, you could have a Dual Mass Flywheel and if the springs are shot it will cause a very difficult to track down vibration. Took us months to figure it out

i have a south bend single mass kit in there

Sep 9, 2021 | 06:34 AM

#28

pwjackson42

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Quote:

Originally Posted by helifixer

do you have an aftermarket down pipe?
if so when not installed right and they rub the pinch seam of the cab they can make strange vibrations.

stock down pipe unfortunately

Sep 10, 2021 | 03:53 PM

#29

Ford Firefighter

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From: South Tx

Did you get it figured out?

Sep 13, 2021 | 01:06 PM

#30

pwjackson42

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I have not but also not had a lot time to mess with it.

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