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steering bushes / rack are apperently fine, 2 mechanics have looked at it , i wouldnt know a thing about it myself

i can't see any evidence of acidents and i'm sure suspension places or mechancis would have pointed it out as the easy way out of a question by a customer (should be easy with the car on a hoist which they have had it many times)

i went to swap my friends r32gtst 4's wheels to brothers r32 gtst just yesterday. turns out that suspension components must vary greatly between these two cars, as there was insane scrubbing with 18's on the gtst, so we werent able to test the car with new tyres and wheels!!!

i might look into the discs being out of balance. will a simple machine of the discs pick up on this?

The commodores are well known for their tailshaft center bearing crapping its self, especially the VN's. :)

They will send a vibe up through the steering wheel on accel and when it gets worse on cruise. I had mine done on the VS 5ltr twice, they don't last too long.

My tail shaft uni joint is shot to hell in my commodore. It shakes the steering wheel to the shit house.

Change the uni joint. Problem gone.

Regarding the shake at 110km/h. I had that with my old gearbox in fifth gear. Drop it back to fourth and there was no vibration. The vibration you could feel up through the seat and slightly on the floor pan. It would slightly vibe the revision mirror where it was difficult to focus in on cars behind.

New gearbox after it stripped third gear and no more vibe.

So try that.. Get it vibrating.. Drop it back a gear and keep cruising. :)

before you spend another cent swap all 4 wheels with another set even if you have to beg borrow steal them just to test the car.

wheels are the largest ammount of rotating mass and will be the easiest/cheapest thing to fix/diagnose.

cheers :(

you would thing flat spotted tyres would be picked up in a simple balance?

A flat spot will just show that one side is slightly heavier, add weight to the other side. Problem still happens that the tyre goes round round round FLAT round round round FLAT.

Each time it hits a flat, it "hops"/"shakes"

Major badness!

the tyres on the front are brand new, my brother doesnt lock up the brakes

before i could suggest an on car wheel balance he has got the discs machined and said that its fixed 90% of the problem. yay. so its better then its ever been but im guessing there is still something there

thanks for your help so far, i wonder if the rest can be fixed too

the tyres on the front are brand new, my brother doesnt lock up the brakes

before i could suggest an on car wheel balance he has got the discs machined and said that its fixed 90% of the problem. yay. so its better then its ever been but im guessing there is still something there

thanks for your help so far, i wonder if the rest can be fixed too

hi there.. where did he get the disc machined, how much did it cost and how long did it take?

did he have to take the disc rotors out himself or just drive to the disc machiniing place and they'll do it all.

thanks

dont know any of it

but its hell cheap and they'll do it all for you and it doesnt take long

even kmart tyre and auto does that stuff! its like $20-$30 a disc, all labour included

but it'd be best to do an on car wheel balance, it would compensate for anything being out of sync. -unless you are getting vibrations when braking (warped discs, fixed by machining / new discs)

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