  The implications of the recent measurement of the left-right asymmetry,
$A_{LR}$, by the SLD Collaboration for theories with extended gauge sectors is
examined. We show that it is possible to arrange for large, negative values of
$S$, based on an analysis of leptonic data, without serious side effects for
other observables in certain classes of models. The implications of such
scenarios for future measurements on the $Z$ peak, at the Tevatron, and for
atomic parity violation experiments are examined.
