jwilk13

I had a thread in the modified section where I mentioned these issues, but it wasn't particularly on topic so I figured I would make a new post.

I'm getting some pretty obnoxious vibrations at specific speeds (worst at ~50 mph, still noticeable after, no vibrations below that), or when I'm turning left (taking a sweeping left at 30 mph produces some harsh vibrations). It also growls pretty loud at lower speeds (less than 15 mph), not sure if that could be the mud terrains though.

It sounds like it's coming from the front, so here's what I've done already. Replaced driver's side hub assembly and axle u-joint, inspected pads and rotors for abnormal wear, removed front drive shaft, checked TREs for slop, checked passenger side axle u-joint. The only things remaining I can think of would be the passenger side hub assembly or possibly warped rotors.

Thoughts?

jwilk13

Could it be this tie rod end on the drag link? It looks really stressed, like its not adjusted properly on the drag link.

Tomk4T

Had a similar problem with one of my vehicles and it was driver side bearing. Kind of a grinding/vibration/roaring when turning left. I replaced the passenger side first then turns out it was driver's side.

I would atleast test the passenger hub and listen for anything. That's about all I can help with. Still getting familiar with jeep quirks.

jwilk13

Yeah, I jacked it up and tested everything, but it doesn't seem to be bad. $100 is kinda pricey for not being so sure.

anywhere & everywhere

what kind of lift do you have and did you get a longer track bar?

Tomk4T

Junk yard would be fine honestly. Shouldn't cost more than $30. The only time I'll buy something new is if it has a warranty unless it is some special crap.

About your Jeep, I'm uncertain. Check steering components maybe? Is it lifted?

jwilk13

Yeah, it's lifted 4.5" and has an adjustable track bar. I replaced the tie rod end there a while back. Any chance I adjusted it to the incorrect length? The vibes just started, and its been lifted a while, but something else could have worn out.

anywhere & everywhere

well I just upgraded to a four and a half and I didn't upgrade my trac bar and I started noticing the vibrations more after I lifted it so I'm wondering if there is a link between the two because my u joint looks fine

Tomk4T

Did the vibrations progress like something was slowly wearing?

what size tires?

jwilk13

I'm pretty sure it's almost a requirement if you go that high. I've heard of people re-drilling and moving the stock track bar over, but I think it's best to just get an adjustable one.

I'm thinking of taking it in to have it aligned and have the wheels balanced to see if that helps.

jwilk13

It seemed like they just kinda showed up. I'm running 32's.

anywhere & everywhere

Yeah already you have already ruled out some issues. I went off roading without getting a new track bar but it did come from a3 inch lift

Tomk4T

Honestly, I cannot answer that question definitively. Sorry.

I bought a 86 Cherokee that had 31's on it and it shook something fierce when it went over 45. Put street tires on and it's be doing fine.

Maybe worn bushings? But judging by your pic, everything looks clean so it's hard to say.

jwilk13

It doesn't shake fiercely, just an annoying hum that I can hear and feel in my feet. I'm going to take it in and have an alignment and balance done and see if that helps. If not, I might bite the bullet and replace the hub and brakes.

Tomk4T

ahh. I didn't figure it was shaking but I thought you had a moderate vibration. A slight hum could just be the 32's and there's a good chance that a balance will help.