  In this paper we introduce a simple renormalizable model of an extended color
gauge sector in which the third-generation quarks couple differently than the
lighter quarks. In addition to a set of heavy color-octet vector bosons
(colorons), the model also contains a set of heavy weak vector quarks. Mixing
between the third-generation of quarks and the first two is naturally small,
and occurs only through the (suppressed) mixing of all three generations with
the heavy vector quarks. We discuss the constraints on this model arising from
limits on flavor-changing neutral currents and from collider searches for the
colorons and vector quarks, and discuss the prospects for discovery at the LHC.
