OK - problem solved, or thereabouts.
I rang around 8 different tyre places including the following:
- Bob Jane
- Quick Fit
- Ian Diffen
- And a loval guy (noname)
Of all the places, only quick fit were interested in helping me out (i started the conversation by inquiring about tyre prices).
The bloke invited me to bring the car down and get it checked out. Turns out the mags were simply ot balanced properly! Its amazed how incompetent some places are. I have been to Bob jane 4 times and Jax at least 3 times and the problem persisted.
Quick fit checked radius rods, Ball joints, steering etc and said it was all fine and in great condition. They then tested each wheel and came to the following conclusions:
- Back left mag has a buckle and can be fixed
- the front mags were both out by 20 and 25g a side, hence the vibration
The bloke also took the car for a high speed run and said there was no detectable vibration up to 130. The balance performed was an off car balance costing me $9 a wheel.
I have since got the car bakc and gave her a thrashing and she seems to be just fine! I need to try some longer high speed testing to be certain (coast cruise) but so far am impressed with the service, solution and little time it took to fix the problem.
I will be going back to Quick fit now and not any other tyre place!