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07.5 - 09 3rd Gen 6.7L Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine, Transmission, etc...NO ADVERTISING

Thread: God awful highway vibration Reply to Thread
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  Topic Review (Newest First)
11-14-2019 08:52 PM
lorenzo816 I’m curious what happened here.
Im chasing down the same sorts of issues.
Getting a shimmy in my butt over certain types of bumps in the road.
I’m thinking leaf spring bushings now after replacing a bunch of stuff.
Unit bearings, ball joints, track bar bushings, control arm bushings, trans mount. Even replaced the shock bushings.
Front driveshaft is new. All body bolts are tight.
Curious how many people have replaced their leaf spring bushings due to vibration.
04-29-2019 10:34 PM
cashcalloway Hum...driveshaft or something out of balance is all I can think of bc I personally haven't seen a bent 2500 axle housing but I guess not out of the question.
I recall some years back, I was looking at an 06 2500 and the dealership took it off the lot bc of a bad vibration in the rear.
The guy told me it's been a month and ruled most everything out. It was a dodge dealership and if I can think which one...I'll pass along the number to see what they eventually determined.
I wanted to say he said they ordered a new aluminum driveshaft but not sure weather that worked or not but I never saw it up for sale again.
Keep us posted!
04-26-2019 10:14 PM
White96cummins I’ve put the rear of the truck on jack stands and ran it up to 70mph still has a shake wobble. Watched the brake calipers and they are sliding side to side quite a bit. Took the wheels and tires off and watched the rotors they have a wobble to them. Then I took the rotors off and noticed both hubs have a slight wobble to them.. bearings feel tight and no weird whining or growling noises coming from the axle. So I’m at a loss, if the axle was bent then the tires should be wearing funky or it would constantly have seals going out I would think? I noticed also that I need to do leaf spring bushings but I don’t think that is the exact problem to the shake and wobble. Any ideas or input would be great. I let my dad drive and he says it’s not that bad and that I should quit obsessing over it. But I beg to differ, driving on the highway it makes me want to gouge my eyes out.
04-26-2019 10:53 AM
White96cummins Well I finally got to take it for a long drive on the highway. Vibration is back or is still there is what I should say. Horrible at highway speeds. Long story short I took it back to the tire place, they replaced one rear tire that was a little out of round. Didn’t help, went back and had the head guy drive it, said He has no idea what it could be. So they replaced both rears this time and said if this doesn’t fix it then idk what to tell you.
04-24-2019 05:56 AM
Nick B. I had the same problem with my toyo tires. Three were good and one was way out of round. It took another two tires to get one that was still in spec. Went to Michelin defenders and itís smooth as glass.
04-24-2019 12:19 AM
petewaro Years ago I had this problem with a Dodge van. There is a tail shaft bushing on the Torqueflite that was the culprit. Luckily I was able to drive a new one in without removing the old one. I am not familiar with the new trannys so I can't tell you how to replace the bushing but that's what I would research...I read that your problem was solved, good, my solution would not have helped since you have a 4x4. There should be a bushing where the driveshaft goes into the T-case, I don't know if a worn bushing in the T-case could be a cause for vibration
04-23-2019 11:02 PM
Auto Check you bolts that mount transfer case to transmission they come lose and vibrate thew the whole truck.
04-22-2019 11:33 PM
Originally Posted by cashcalloway View Post
That's great news and glad you have it resolved.
Thanks for updating us<img src="" border="0" alt="" title="Wink" class="inlineimg" />
Thank you for the input as well!
04-22-2019 10:15 PM
cashcalloway That's great news and glad you have it resolved.
Thanks for updating us
04-22-2019 04:31 PM
White96cummins so I finally called Les Schwab and had them road force my tires, they called me and said all 4 were out of balance ( I just had the place where I bought the tires " Rebalance" them 4 days ago") and the one rear was 48lbs! the other 3 were good, so they did the best they could and got it under 30 which he said was the acceptable limit. and now it drives smoother up to 60mph
04-22-2019 08:07 AM
cashcalloway Even the slightest out of round tire can be felt. If I aired up my tires as recommended...I could always feel it more it seemed. By airing it down helped the jarring some. I would keep about 40-42 pounds in the rear and that did help.
04-22-2019 02:58 AM
Originally Posted by cashcalloway View Post
When I had General Grabber ATII, my truck vibrated too. I had to road force balance to help identify the bad tire. Fought this for 2 years bc this eventually happened with all 4 tires (which General would only prorate as they went out-of-round individually...not the set). The 5th time I sold the haineous tires and bought Toyo due to the reviews here. I've never looked back.
I've had 3 sets of Toyo ATII and current Xtreme's and they balance great and thankfully no vibrations.
I would recommend having them road force balance to see if they are out of round. I cant remember what General said was the magic prorate weight number but I had to have roadforce first to confirm the tire took too much weight.
Anyway, Best of luck and keep us posted.
Yeah I’ve been thinking it’s the tires the whole time but just didn’t make since because the vibration was there even with the last set of wheels and tires. But I will look into getting them road forced and keep you posted! Thank you!
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