I suspect that the problem is with the tyres rather than brakes, the movement on the steering wheel suggests you have an out of shape tyre, probably due to ply seperation. Try swapping the front and rear wheels, or jack each side of the car up at a time with the wheel just clear of the ground and rotate it, observe carefully the gap between the tyre and road, any variation denotes a defective tyre.

Did you have the vibration prior to fitting all the brake parts. Regards Peter

Maybe excessive run out on a disc?

Have you actually checked the tyres for run out? The fact that they were OK before the brake job doesn't necessarely mean they still are.

If the apparent brake vibration hasn't changed despite new discs and pads, then there's every chance it isn't either, or faulty fitting, as it would be extremely unfortunate to duplicate the symptoms precisely.

You're obviously happy with the operation and freeing off of the calipers, did you push the pistons all the way in..did you inspect the pistons as best you could by peeling the dust covers back when the pistons were nearly all the way out?

Check for wear in all suspension joints and both inner and outer CV joints, worn inner joints can cause a horrible vibration, but usually under power, check for drive shaft itself out of true.

Have you swapped wheels front to back as a test...safe and easy to spin the wheels on the back to have a nose at how they run...check for buckled wheel too.

Have the brakes ever been bled and or the fuid renewed...outside bet but it won't do any harm if it's been years.

I have run a car in gear with the front end super firmly chocked up (and rear end very frimly chocked and braked), with wheels off then on...this is not to be taken lightly as there are obvious dangers so don't consider it unless you have the know how and correct conditions.

Edited by gordonbennet on 12/02/2011 at 11:06