The owner may or may not have some performance complaint that goes along with it; but you know this system, like engine control systems for some time, can compensate for most problems, can mask what would otherwise be driveability symptoms.

Ball and socket joints aren’t the same as they were, so no one rule fits them all any more.

Shared inputs and outputs are passed between both units. What follows is a brief description of some of the LH system’s key components and functions.