Help! Vibration at 55-62 mph - Competition Diesel.Com

Penni · 12-20-2017, 09:27 PM

Alright so, i have a vibration at 55 to 62 ish... randomly worse than better on occasion... sometimes it's so hard it'll shake a drink out of your hands and other times is just a faint constant vibration... and above 62 its always there just faint

Here is what i have done to date:
- Dropped front shaft and drove without it, vibration still there (sent off front shaft to be balanced & it checked out fine as well)
- swapped a full set of rims/tires, vibration still there
- new u joints on rear shaft, vibration still there

No leaks from t case either

Last year the truck had a full front end rebuild, upper/ lower balljoints, wheel bearings, track bar, tie rod ends... the front axle u joints did not get changed...

I'm at a loss on this thing, any help would be appreciated...

Sent from my SM-G930V using Tapatalk

DISTURBED · 12-20-2017, 09:29 PM

Is it an aluminum drive shaft?

DDually · 12-20-2017, 10:04 PM

I was going to ask about the driveshaft as well.

dangerous06 · 12-21-2017, 08:48 AM

First the basics are the tires balanced? I know you changed them. Shocks? Under 55 nothing? does it get worse when you hit a bump? Do you have to stop to make it stop?

Red Sleeper · 12-21-2017, 08:58 AM

Have you checked the balance of the rear drive shaft? Maybe a weight fell off.

How does the pinion feel in the rear end?

Tobin · 12-21-2017, 10:00 AM

jack the truck up and put it on jack stands. Run it up to speed and see if it is driveline related. Is it death wobble (front end)? How is the steering dampener?

jasonc · 12-21-2017, 10:06 AM

Again with what Tobin said, is it death wobble? Is the truck lifted?

sootie · 12-21-2017, 10:35 AM

pull the rear driveshaft and drive it in 4x4 and see if it is gone. I have seen vibrations from pinion slop, u-joints, off-balance driveshafts, bent rims, out of round tires, out of balance tires and wheel bearings.

95cummins5.9 · 12-21-2017, 11:45 AM

Road force balance those tires!

Penni · 12-21-2017, 01:02 PM

Original driveshafts.. both have been balanced... two completely different sets of rims and tires both balanced... it is not death wobble, steering dampner is new.... stock height no lift at all

Sent from my SM-G930V using Tapatalk

Penni · 12-21-2017, 01:03 PM

Quote:

Originally Posted by dangerous06

First the basics are the tires balanced? I know you changed them. Shocks? Under 55 nothing? does it get worse when you hit a bump? Do you have to stop to make it stop?

Yes both sets balanced... new shocks all the way around, under 55 nothing, a bump changes nothing and no i just have to get below 55 again to make it stop

Sent from my SM-G930V using Tapatalk

Penni · 12-21-2017, 01:03 PM

Quote:

Originally Posted by DISTURBED

Is it an aluminum drive shaft?

Original shafts

Sent from my SM-G930V using Tapatalk

Penni · 12-21-2017, 01:04 PM

Quote:

Originally Posted by Red Sleeper

Have you checked the balance of the rear drive shaft? Maybe a weight fell off.

How does the pinion feel in the rear end?

Both shafts balanced, pinion feels excellent

Sent from my SM-G930V using Tapatalk

thatguy69 · 12-21-2017, 03:16 PM

what if you push the clutch in and coast,does it change?

DISTURBED · 12-21-2017, 03:59 PM

Quote:

Originally Posted by Penni

Both shafts balanced, pinion feels excellent

Sent from my SM-G930V using Tapatalk

I just went through this on my 08 with the aluminum shaft. Balance means nothing. I had mine throw 3 of the 4 weights off the one end and it balanced with in spec. Still vibrated bad. I ended up knocking the last weight off and the vibration is gone. Inspect the shaft and see if the weights have fallen off. Also make sure the new joints move freely. A tight joint can cause a vibration as well

Penni · 12-21-2017, 04:40 PM

Quote:

Originally Posted by thatguy69

what if you push the clutch in and coast,does it change?

Coasting its still there... clutch in or engaged

Sent from my SM-G930V using Tapatalk

Penni · 12-21-2017, 04:41 PM

Quote:

Originally Posted by DISTURBED

I just went through this on my 08 with the aluminum shaft. Balance means nothing. I had mine throw 3 of the 4 weights off the one end and it balanced with in spec. Still vibrated bad. I ended up knocking the last weight off and the vibration is gone. Inspect the shaft and see if the weights have fallen off. Also make sure the new joints move freely. A tight joint can cause a vibration as well

I will check the weights... good idea

Sent from my SM-G930V using Tapatalk

jasonc · 12-21-2017, 05:10 PM

Is it doing it running a steady 55mph or whatever the speed was, in 6th gear? What would it do if you ran it out the same speed and held it in 5th.

Penni · 12-21-2017, 09:52 PM

Quote:

Originally Posted by jasonc

Is it doing it running a steady 55mph or whatever the speed was, in 6th gear? What would it do if you ran it out the same speed and held it in 5th.

I have not checked a different gear, I'll try this is the morning! Great idea sir!

Sent from my SM-G930V using Tapatalk

1stgensleeper · 12-21-2017, 10:28 PM

Quote:

Originally Posted by Penni

Both shafts balanced, pinion feels excellent

Sent from my SM-G930V using Tapatalk

Just balance? Were u-joints or anything replaced?

12-20-2017, 09:27 PM	#1
Penni Name: Penni Title: Too Much Time Status: Not Here Join Date: Oct 2010 Location: Southwest MO Member`s Gallery Posts: 1,351	Help! Vibration at 55-62 mph Alright so, i have a vibration at 55 to 62 ish... randomly worse than better on occasion... sometimes it's so hard it'll shake a drink out of your hands and other times is just a faint constant vibration... and above 62 its always there just faint Here is what i have done to date: - Dropped front shaft and drove without it, vibration still there (sent off front shaft to be balanced & it checked out fine as well) - swapped a full set of rims/tires, vibration still there - new u joints on rear shaft, vibration still there No leaks from t case either Last year the truck had a full front end rebuild, upper/ lower balljoints, wheel bearings, track bar, tie rod ends... the front axle u joints did not get changed... I'm at a loss on this thing, any help would be appreciated... Sent from my SM-G930V using Tapatalk __________________ Mike 98 - 12v, under construction now, eventually a dedicated 2.5 puller 06 - QCSB - G56, 3250 SB DD, Fass 150, Arson III, 90hp DDP, EFI Live by Done Right Diesel Performance, CTS Insight, S&B CAI, Full Audio System 1972 - Chevy C-10 longbed, also rebuilding slowly

12-20-2017, 09:29 PM	#2
DISTURBED Name: DISTURBED Title: YEA WE RIDE THE SHORT BUS Status: Not Here Join Date: Nov 2007 Location: Winchester, Va Member`s Gallery Posts: 6,417	Is it an aluminum drive shaft? __________________ Thanks, Jeremy 01 CTD Retired sled puller, dedicated "Twin Turbo" tow rig 96 CTD "TOO" Disturbed 3.0 - Built by Disturbed Diesel Performance 96 CTD "The Sickness" 2.6/2.8- Built by Disturbed Diesel Performance

12-20-2017, 10:04 PM	#3
DDually Name: DDually Title: Still spooling.. Status: Not Here Join Date: Nov 2009 Member`s Gallery Posts: 2,095	I was going to ask about the driveshaft as well. __________________ 1995 Cummins with almost no matching paint, 2 dents 2001 VW TDI South bend, tune, nozzys, custom stuff that's rusting, one custom thing that's not rusting

12-21-2017, 08:48 AM	#4
dangerous06 Name: dangerous06 Title: diesel tech Status: Not Here Join Date: Mar 2008 Location: Escondido CA Member`s Gallery Posts: 3,564	First the basics are the tires balanced? I know you changed them. Shocks? Under 55 nothing? does it get worse when you hit a bump? Do you have to stop to make it stop? __________________ E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built 48RE, 5" exhaust,Carrillo rods, Pacbrake!

12-21-2017, 08:58 AM	#5
Red Sleeper Name: Red Sleeper Title: Too Much Time Status: Not Here Join Date: Aug 2009 Location: Lone Star State Member`s Gallery Posts: 4,595	Have you checked the balance of the rear drive shaft? Maybe a weight fell off. How does the pinion feel in the rear end? __________________ Nick J '14 Silverado LTZ 5.3 4wd '05 Cummins QCSB 4wd 48re '91 Cummins w350 5spd

12-21-2017, 10:00 AM	#6
Tobin Name: Tobin Title: 5.7 IDI Powaa! Status: Not Here Join Date: Oct 2008 Location: Oviedo, FL Member`s Gallery Posts: 1,505	jack the truck up and put it on jack stands. Run it up to speed and see if it is driveline related. Is it death wobble (front end)? How is the steering dampener? __________________ 2006 Dodge 2500 QCLB 4x4 Goerend 48RE 1977 F250 RCLB 4x4 "High Boy" 12 valve, 180 pump, 5x.014, S363/S475, Goerend 47RH, NP271, 2007 D60/Sterling 10.5, 40" Toyo MTs

12-21-2017, 10:06 AM	#7
jasonc Name: jasonc Title: Too Much Time Status: Not Here Join Date: Nov 2009 Member`s Gallery Posts: 4,412	Again with what Tobin said, is it death wobble? Is the truck lifted?

12-21-2017, 10:35 AM	#8
sootie Name: sootie Title: .....like a BAWSS Status: Not Here Join Date: Jan 2013 Member`s Gallery Posts: 866	pull the rear driveshaft and drive it in 4x4 and see if it is gone. I have seen vibrations from pinion slop, u-joints, off-balance driveshafts, bent rims, out of round tires, out of balance tires and wheel bearings.

12-21-2017, 11:45 AM	#9
95cummins5.9 Name: 95cummins5.9 Title: Old man *** gossiper Status: Not Here Join Date: Jun 2012 Location: U.S.A Member`s Gallery Posts:** 4,719	Road force balance those tires!

12-21-2017, 01:02 PM	#10
Penni Name: Penni Title: Too Much Time Status: Not Here Join Date: Oct 2010 Location: Southwest MO Member`s Gallery Posts: 1,351	Original driveshafts.. both have been balanced... two completely different sets of rims and tires both balanced... it is not death wobble, steering dampner is new.... stock height no lift at all Sent from my SM-G930V using Tapatalk __________________ Mike 98 - 12v, under construction now, eventually a dedicated 2.5 puller 06 - QCSB - G56, 3250 SB DD, Fass 150, Arson III, 90hp DDP, EFI Live by Done Right Diesel Performance, CTS Insight, S&B CAI, Full Audio System 1972 - Chevy C-10 longbed, also rebuilding slowly

12-21-2017, 03:16 PM	#14
thatguy69 Name: thatguy69 Title: Too Much Time Status: Not Here Join Date: Jul 2011 Location: Mansfield Ohio Member`s Gallery Posts: 2,023	what if you push the clutch in and coast,does it change? __________________ 1999 Compound 24v Rust Rocket 2008 F350 P24v/Allison

12-21-2017, 05:10 PM	#18
jasonc Name: jasonc Title: Too Much Time Status: Not Here Join Date: Nov 2009 Member`s Gallery Posts: 4,412	Is it doing it running a steady 55mph or whatever the speed was, in 6th gear? What would it do if you ran it out the same speed and held it in 5th.