Vibration

[Redram 1]

I have replaced almost everything chasing a vibration under my Duallie. If anyone has an idea please Chime in. I have replaced all the u-joints,carrier bearing and ball joints,rotated tires,put on new front shocks and still vibrates starting at 65 and up. I'am open for any sugestions. thanks

 

[JXP]

usually any vibe over 55 mph. means rear tires. i would have them spun balanced with a good balancer. good luck, joe.

 

[Redram 1]

re

I just did that this Saturday,still the same.

 

[Hoefler]

Have the drive shaft angles checked. If they are out of whack, it will cause a high speed vibration.

 

[LHepplestone]

Hi, new guy here. I have a vibration at a slower speed. A little vibe at 40mph under light throttle and at 50 in OD under light throttle. Almost like a slight bounce not realy a vibration. I do get a vibration under heavy throttle at 65mph. I think the converter in lockup is chattering. Any input would be great.



Thanks, Lee



_________________________________________________________________



2001, 4x4 2500, Edge EZ chip, 4 inch exhaust, K&N cone filter with tube to the turbo and silence ring removed, Transgo shift kit, full set of A piller gauges, 33x12. 5 BFGoodrich mud terrain on 16. 5 Centerline rims and a 2 inch lift in front only. Guesstemit 300 hp & 600lbs tq. :--)

 

[Redram 1]

re

I can't believe no one else has had this problem.

 

[betterthanstock]

maybe your traction bars are too tight and set up an axle vibration??

you need to explain where you feel your vibe, in floor, steering, does it go away if you shift to neutral at that speed, etc...



or is it a springless clutch that sets up a driveline vibration...

 

[GaryCarter]

Put it up on a lift and run it up to speed.



PS- don't slip off!



Gary

 

[Redram 1]

re

this is on my 2004 dually not the puller. Sorry i have not updated my sig in a while. I can feel it in the floor after I get up to 65 mph and higher. I have not tried the lift thing yet. I guess thats next.

 

[JWChessell]

Redram 1:



I had exactly the same problem in my '81 Chev 1-ton crewcab dual-rear wheel long bed. After doing all the same things that you have done, it turned out to be 3 things: A slightly out-of-round steel wheel, which I replaced; an original cast-iron rear brake drum/wheel that was slightly heavier on one side than the other (those things weigh about 150 lbs each), which I replaced; and the difficulty of getting two wheels that run together (2 on each side) perfectly balanced so that ALL vibration was eliminated. Once the first two things were discovered and fixed, MOST of the vibration did disappear. But I never got rid of 100% of it, only about 95% of it.

 

[DSahd]

A shot in the dark... ... But I would also check the bolts holding the loadbody on.

 

[steved]

this is on my 2004 dually not the puller. Sorry i have not updated my sig in a while. I can feel it in the floor after I get up to 65 mph and higher. I have not tried the lift thing yet. I guess thats next.

Ummm, the vibs are a "normal" condition for the 03/04s... I had to install the dynatrac kit to get rid of them... it was something in the tcase a far as I could track it... mine was there since new... it never got any better. A lot of these truck had this issue...



Do a search on vibrations... there are a lot of "fixes"... keeping the fornt driveline from turning was the only thing that helped mine... some of the fixes: balancing both driveshafts, swapping driveshafts, drivetrain "alignment", etc.



steved