I've got a vibation at 60-70mph its not really a growl but defiantly doesn't sound right. I have an ATS tranny with under 10000km on it. I replaced the rear u-joint along with the tranny, the front u-joints, wheel bearing, other u-joints have little to no play, I also replaced the rear pinion bearing and seal tonight, any other thought of what this might be

 

Hmmmmmmm

 

I had my driveshaft balanced when I got my ATS rebuild. That balancing really smoothed things out above 60. But if the vibration is a recent thing you might check out the center support bearing that supports the driveshaft.

 

I had a vibration at the same speeds a while back. After replacing all steering, ball joints, drive shaft, shocks it ended up being my track bar was a little loose. Torqued that thing down good on both ends and that fixed it.

 

u-joints...........

 

my CTD is a standard cab so I dont have the center berring but my Toyota x cab had a deep noisy Rythmic vibration that was from the center berring

 

i took a pry bar to my u-joints and all looks good, i pulled the front drive shaft off last night and still have the vibration. i dont have a steady bearing either... this is starting to burn me out. I dont want to have to just start throwing parts at it either

 

The u-joints can be bad w/o being loose.

Look for a rusty dust around the seals.....Pull the rear retainers and try to rotate the u-joint by hand. It is a free check to be sure.

 

Would itbe possible that something in one of the diffs could be loose or out of whack, there's no oil coming out of the seals

 

I'd check the u-joints, they are a wear item and easy to do...trust me on this.

 

I just replaced my U-Joints while I did ball joints, etc. Hadn't noticed anything out of the ordinary really, just a bit of a vibration, nothing visibly wrong though.

Put new Spicer cold forged joints in, and when I took it apart, one of the originals had turned to powder.

One thing I would suggest is, get original SPICER joints, there is a reason they are 45 bucks each versus the typical autoparts store 20 dollar joint.

 

Everyone one of us was incorrect on this, thanks for all the information, I just did most of the u-joints on the truck... The final thing that got rid of my vibration, was I had balancing beads in my tires and the shop that did it never took the old weights off. I'm thinking one must have come off and threw a vibration, now we're all good thanks everyone again, now to find out why I blew a tranny line on my final vibration test drive

 

I here of these beeds on this form often, Will the iron ***** sold in sports stores for sling shot ammo work?

 

Nice, its always a relief to get things figured out!