Hello, first off let start off with i recently got new tires and lift finally (2.5 RC BB,treadwright 33s on stock 17's on spider track spacers) i'm having a hard time trying to pin point my vibrations and the root culprit.i get a slight vibration from 30-40 mph. I want to say it's a tire balancing issue but I'm also hearing possible u joints or drive shaft from other threads. I have an appointment next week to get the tires rebalanced cause I don't think they balanced them right per treadwright instructions.

Along with the lift I changed out both tie rods,and drag link,and steering stabilizer. Grade 8 track bar bolts. Due to DW, but now my DW is gone I think. I just have this vibration nothing horrible but enough for the steering wheel to vibrate. The vibration starts around 30mph lasting till 40-45mph, then it's gone,I haven't pushed the speeds past 60mph cause I don't know if I'll make it worst.im worried this vibration might evolve to DW. Much help is greatly appreciated. If anyone has had the same issue please tell me what you guys have done to eliminate the issue thank you

 

A 15 mph window seems a little much for a tire issue. Every balancing issue i've encountered results in a vibration for about 5-6 mph through the band. Do you have alignment specs handy?

 

before putting on the spacers did you take off those clips that hold the hub on ? they are on the wheel studs. I agree with the above on the bal. of the tires, I also running Treadwrights they are working great for me.

 

I don't have the alignment results,i didn't get one bc I was told that I wouldn't need one for a 2.5 bb. I going under the jeep this wkend to re-torque everything just to be sure,and I took the washer off before the spacers were installed on the front, the back still needs to be done,which I'm doing tomo to see if that helps.if neither work I was going to schedule for an alignment. This following week. Do you think not having an adjustable track bar could cause this with the axle not being centered?

 

So good news I know I'm a bit behind but I found out the vibrations,it end up being my tie rod.idk how my jeep didn't wreck.my came home yesterday and decided to look and see one more time looking at every bolt,instead of shaking things,and saw my passenger tie rod bolt wasn't torque down,the joint wasn't threaded thru and was flush with the nut,tightened and torqued and g2g now thanks everyone for your help and patience