reaper158

So I need some help, has anyone ever experienced an thumping sound when they hit a bump in the rear, it seems to just happen on the passenger side. I have new suspension I'm terribly stumped!

darksyde

check your rear sway bay i had the same thing on the front and when i looked under the car one of the sway bar nuts had come off (just an idea)

anotherLS

iTrader: (9)

check the strut bolt in the middle of the top hat

plus1choi

iTrader: (1)

Oddly I've been hearing a thump too right after I put on my new suspension.

I've already checked the middle of the top hat. Guess I need to check sway bar next

Lux03lxus

A clunk when you hit bumps most likely points to your rear sway bar.

reaper158

You know I have new coilovers, ill check the sway bar however my mechanics seem to think that its the sub frame bushing, could that be the problem? I don't wanna seem like a retard but I'm a little new to the Lexus world!