Hey Guys, Does anyone know what steering box came on 78 Z28s? What ratio are they? I vaguely seem to recall something about a "variable ratio" being advertised in the literature back in the day. Not sure how that would work, but I've seen other boxes that claimed to have variable ratios too. (I would assume the thread pitch would be different from the center to the ends of the screw, but not sure.) I guess the real question is, did they come with a good box or is it something I should consider upgrading? Thanks.