"thumping sound" won't go away...
 

I just changed the upper arms which i bought from a fourm member, rotaryexperiment. I've been having "thumping"sound comming out from the rear during left turn and I was hoping to get rid of it with "low mileged arm with tight bushings" but that didn't doit. I still have the "thump!" (oh yea, i couldnt afford to buy a whole new bushing set, thats why i bought the whole arm)

so whats next?


I've changed...
-toelinks
-upper arms

suspicious parts...

bold tires
loose diff bushings


i need some inputs guys!!!
Thanks!

edit

I have bad diff bushings which cause some knocking when I shift. Could that effect the suspension? (up and down motion)

Could it be the lower arm bushing causing this?
or tokiko 5way shocks with 60,000miles? (no visible leak found)

When one of my diff bushings went bad recently I would get weird sounds from the rear of the car during quick left turns. The bushing was bad enough that the diff could move slightly and what I was hearing was the diff mount scraping against the mounting ears on the chassis. If you know the diff bushings are bad that could very well be it.

Thanks....I hope its the diff mount. I have a good mount ready to be installed.

hey DamonB, what kind of sound was it? Was it something like basket ball bouncing against the bottom of ur car?

No. Mine was a scraping sound that only occured when I was on the gas hard and cornering hard at the same time. This put enough force through the drivetrain to make the diff shift over slightly and rub the mounting ears on the rear subframe. I could see the slight scratches when I removed the mount to replace the bushings.

On a scale from 1 to 10 (10 being the hardest) How hard of a job is it to replace the Diff Bushing(s). How many Diff Bushings are there??

ok, it might well be the shocks......i started to notice the problem after changing my stock springs to the H&R....

Hey I just noticed something! I got new tires and now, the banging noise from the rear during the turn got more quiet....its still there but it has gotten alot better. What does this mean? Does that narrow out the possibilities towards the shocks? Help me out guys!