Looking for some advise, I have a vibration that shakes the hood at 65-70mgh. I bought new tires and have had them rebalanced mulitaple times to where the tire guy says it's not the tires. After all the balances it still does it only @ 65-70mph. Can my single piece drive line get out of balance? Maybe the shocks? Althought the shocks are fairly new but not the best. I do notice the vibration worst when the hwy I travel has a bend in the road and it seems to get worst durning the turn.

I'm lost as to where to address my efforts.

Thanks in advance

 

Only your hood shaking? Feel any vibration in the seat, floor, or steering wheel?

Pete

 

It's like the whole front of the truck. Steering wheel, dash, hood. I forgot it say I removed my front driveline to elimate that.
Thanks

 

If it is a 4x4 you might want to check out the U joints on the front axle and the ball joints as well. I've replaced all 2 times and am getting ready to do it again at 185k. Hope this helps

 

I don't think ball joints. just replaced with all new

 

u joints or wheel bearing. Any additional road noise?

 

Rotate your tires to see if it changes. Balancing won't fix a bad tire (been there) and it probably isn't anything you could see. Once you KNOW the tires are good, then move on.

 

Yep! I had BFG replace all 4 with only 3,000 miles on them. We did find 1 new, bad tire that started to make the truck pull to the right. The newest tires hardly took any weight to balance and the tire guy really took his time knowing the issue. I still had the vibration after the first test drive. I just had the tires rotated and I can't feel any differance as to where the vibration is coming from.

Thanks again.

 

I'll take a look at both of those. I Just replaced ball joint less then 5K mile ago. Bearing & U.J original with 146K miles. She rides smooth before 62mph and rides like a floating cloud @75mph.

Anyone think it could be the shocks not holding?

 

Naw don't think so, when my bearing went south I had already had brand new Bilstein HD shocks put on. I'm now having this same vibration as you, but on a 2wd and coming from the rear though. Shocks are like new still. Pulled the driveshaft and yep its seen better days. Haven't gotten around to swapping joints yet, waiting on a friend to clean his garage so I can do some work.


Now keep this in mind, there has been a thread not too long ago about this very thing, it could be a dodge build problem that hasn't been identified. It could be the joints. If you haven't changed them out yet in 146k I'd be doing it anyways as preventative maintenance.

 

Read this, It may help you. Hope it don't send you into confusion on what to do.

https://www.dieseltruckresource.com/...s-t243083.html

 

Hummm. Goes back to the tires. Thanks. I just checked the D.L U-joints. All seem fine without a load against it. I did notice where the drive line goes into the rear of the trans.... I get alittle up and down play. After my lift. The shaft has slide out about an 1" as to where it used to ride. I'm wondering if that might cause vibration?

 

The lift could be doing it. What kind is it? I don't know much about the lifts because I have a 2wd but I know there have been issues before with some lifts maybe someone can chime in. Cover all the bases ya know.

 

it's a Rough Country lift. I wish I could remember if the vibration was there before the lift. My old tires were bad but until I changed my Ball Joints I didn't get new tires. My old tires were ate up so bad from the bad B.J. they also vibrated from out of balance. I did the lift/ball-J./tires all at the same time.

 

Was your tires balanced with a road force balancer? Guy at work had a similar issue just to find out that that Firestone shop's balancer was not calibrated and the only way to balance his truck tires was with a road force balancer - they actually apply a force to the tire to simulate the weight of a vehicle.

Just my 2 cents.