I have a 90 toy v6 I got rid of the chain drive transfercase and now I have a single gear driven case with 4.7s. Its 23 spline mounted to trans via a v6 adapter plate MC-14210. Im looking at adding a crawler box and would like to get a clocked adapter. what adapter do I need the trans is a r151 sorry this is such a noob question but I just cant seem to understand