A few months ago I changed the leaf springs and front coil springs with a spacer to level out my Cherokee. Since then I checked my rear drive shaft u joints and they are fine.
the vibration seems to go away around 50 MPH. The vibration is felt in the front seats and makes a sound like wah wah wah and is causing premature wear on my front tires.
Cheyenne is a 1999 Jeep Cherokee with no mods.
help!

 

How thick was the spacer on the front coils?
Sounds like you do have "mods".
Did you get it aligned after the suspension work?
We need a little more info.

 

Thanks for the quick reply. I did not get an alignment and the spacer is 3/4” with ZJ coils.
I read on a separate thread that an alignment wasn’t necessary but now I am thinking it is.
I was trying to save a few bucks.

 

Did you re align the front end when you lifted it?