Also get manual versions (hubs) as fast as you can, I've broke those on every Ford I've owned. Warn made the hubs I switched to, One B2, one Ranger, and one Powersmoke. All came with the plastic graphite looking hub parts.
x2 on replacing these with manual locking hubs. i broke the auto hubs on my stock explorer and repleced them with the warn locking hubs. You can get these at advance auto for under $300. Well worth the money.