Bumpy ride after Thuren upgrades

[Kr0ss]

Thanks for the feedback, guys.

I had the wheels road-force balanced yesterday. The tech said they only needed minor corrections. They're near perfect balance now, and the vibration remains. It's only noticeable in the 50-65mph range but it's bad enough that it visibly shakes the passenger seat side to side.

Since this started when the rear shocks/springs went on, removing them is my next troubleshooting step. I'll keep you posted.

 

[Dinky]

Thanks for the feedback, guys.

I had the wheels road-force balanced yesterday. The tech said they only needed minor corrections. They're near perfect balance now, and the vibration remains. It's only noticeable in the 50-65mph range but it's bad enough that it visibly shakes the passenger seat side to side.

Since this started when the rear shocks/springs went on, removing them is my next troubleshooting step. I'll keep you posted.

Did you install a different track bar? have you had the alignment done since you leveled and moved the suspension around?

 

[Kr0ss]

Did you install a different track bar? have you had the alignment done since you leveled and moved the suspension around?

I did install a new front track bar. I haven't gotten an alignment yet; it's scheduled for next week - the soonest they could get me in.

Have you seen alignment issues cause vibrations? The steering wheel is straight and it tracks straight on the highway.

 

[Dinky]

I did install a new front track bar. I haven't gotten an alignment yet; it's scheduled for next week - the soonest they could get me in.

Have you seen alignment issues cause vibrations? The steering wheel is straight and it tracks straight on the highway.

I have seen it do weird things. i know Ram has a lot of toe in with OEM alignment and seeing how you only have it at higher speeds. It doesn't make sense for it to be suspension as you would feel it at every speed. I would leave the spring/shocks in place and get it a agliment with thuren specs. Also this give it more time to break the springs in more.

 

[Kr0ss]

Ok, so at this point I've gotten a road-force balance, an alignment, and even tried centramatic wheel balancers. The balance and alignment made no difference at all. The wheel balancers have helped some, but the problem is still very apparent.

I didn't get a spec sheet after having the road force balance done, but I can see that one of the three wheels has way more weight than the other three. I will test to see if that wheel may be out of round, then possibly rotate that to the front to see if the vibration follows.

If the problem remains, I think next thing to investigate would be driveshaft vibration - thoughts?