High frequency vibration through steering wheel

[tappets Junior Member Find all posts View Profile Close tappets]

I have a 2008 120 diesel GX manual. Under hard acceleration the steering wheel starts to buzz, i.e. it has a high frequency vibration coming up the steering column.

I have rebalanced the wheels, the wheel bearings are good as are all the bearings on the diff etc etc.

I have had a look at the "backlash" on the front diff. The bolts on the input flange rotate approx 11mm, the rear diff rotates approx. 4mm. I have asked Toyota if the backlash on the front diff is a) normal and b) if not, would cause the vibration. No answer so far! Any thoughts?

I have checked all the undertrays and they are secure.

I have recently changed the front diff oil.

I would appreciate any thoughts / similar experiences.

Dave

[peril Senior Member Find all posts View Profile Close peril]

Do you run mud terrain tyres by any chance?

[Shaker Junior Member Find all posts View Profile Close Shaker]

Do you have a suspension lift?

[tappets Junior Member Find all posts View Profile Close tappets]

Do you have a suspension lift?

It has the original Dunlop tyres and std suspension.

[Busker Lurker Find all posts View Profile Close Busker]

Hi tappets, did you manage to solve the steering wheel vibration ?