What I would do is build your axle. Yota or bigger(dana or military)??? Put a high pinion front cause youll eventualy want one if you plan on SAS. ARB if you can afford of Elocker. youll want a front locker. Weld, spool or arb/elocker rear cause youll need it. with a SAS you will have more flex and chance but TRUE IFS can go if you dont do what Ive already stated. More ???'s then keep them comming cause if you plan this youve got more on your mind than just SAS trust me

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