Not having much luck with searching the archives. My 57 Bird seems to steer well enough (for a 57 vehicle) but noticed the sector shaft adjusting screw is pretty far down in the thread travel of the lock nut. Maybe an eighth inch or so. Doesn't seem the way it should be. I suspect this indicates some excessive wear inside the box. First, can I remove the sector shaft housing cover and have a look while the box is still mounted in the car without troubles? The Ford manual isn't very clear about this. Second, there appears to be only 2 or possibly 3 gasket shims under the upper cap. Will removing shim/gaskets change the sector shaft adjustment significantly? I need a little educatin'. Thanks.

57 Black Tbird 312/auto