I gotta jump in and ask: if doing a SAS and upgrading the tcase with duals or gears, why run the lefty at all? Why not get a RHDrop axle and the just the tcase adapter?
Sand, what fun, drop pressure to 12psi, stock tires are still digging, can't afford to get stuck, 8psi, still not working. Find a place to GET OUT, air up, un-lock hubs, WAIT whats this, hubs are UN-LOCKED already. 2wd, 8psi, stock tires, Oregon sand dunes.