nvryder

So I've got an IS300 and I am running Megan Coilovers on 18s. I started to notice a vibration and when I went to paint the rotors/calipers I noticed the uneven pitting on the inside of the passenger front tire. There is a small camber - 1 degree as the vehicle is a little lowered and I had the coilovers installed about 2 years ago.

I had the tires replaced and car realigned yesterday and I am still getting the vibration.

Thoughts?

BiggDatty

Are you running on any hub centric rings for your wheels?
If you aren't, the wheels are relying on the lugs to hold the wheel. This is the most common vibration to have.

nvryder

-Are you running on any hub centric rings for your wheels?

Affirm. I am running hub centric rings for my wheels.

nvryder

I took another look at them today. Both front suspension set ups have the upper ball joints popped. I am going to have them replaced tomorrow to see if it addresses the issue. I'll keep you posted on the results...

PHML

iTrader: (33)

I was about to say...check your lower ball joints. Happens more when the car is lowered.

Here's a pic of an IS300 owner....who posted in the 2GS section.

nvryder

Ouch.....That looks like it hurt...

nvryder

Update-

I installed the upper adjustable ball joint made by SPC. This made a big difference in killing most of the vibration while driving around town but i haven't taken it on the freeway yet.

New problem - I got the opportunity to look at the lower ball joints and they aren't doing so hot. About 1/2 an inch of play (not good) so I am looking at replacing those as well.

nvryder

Update:

Finally got a chance to take it on the freeway. Still some vibration..grrr

Looking at replacing the lower ball joints and wheel hub bearings at the same time...

mball19

Have you checked your #1 and #2 lower control arm bushings? They seem to need replacing around 100k.