I have removed and dismantled my corsa's 7b2 atb diff. to check for any indication of it is responsible of bad torque biasing as I mentioned before. There is no broken gear or part but the six preloader spring discs seemed to me pretty weared. If the preloading pressure is not strong enough what would be the atb's behaviour? Is there someone who knows how can I examine them? (for example free height of the disc etc.). I can send pictures of discs on request.
the preloads need to be quite accurately set, if low (let me think lol) then the car will steer more easily so if when accelerating hard and the wheel turns you will get an increasing movement I THINK (important words as i dont have 1st hand experience of this)
and if the plates are worn a rebuild wouldnt go amiss
whose diff is it? not sure what 7b2 means personally
this doesnt sound like quaife by the way (can you tell i just read the thread title LOL) unless i have got the wrong end of the 'preload' stick as thats for plate diffs, not gear driven
sorry, it is a quaife atb for vauxhall nova. .. by the way my problem was:
when I give full throttle at low speeds, the car puts its head out to right side about 30-40 centimeters, at this moment the steering wheel is getting forced to turn a quarter revolution. I tought that indicates a LSD problem.