Quote Originally Posted by Werhusky View Post
The gear description usually says either of "All Classes" (then you need check stats you want VIT/STR); "Disciplines of Magic" (You cannot equip as tank or any physical DPS); "Disciplines or War" (you can equip as any physical DPS and tank but they are STR/DEX based so worse than tank gear) or "DRK/WAR/MRD/PLD/GLD" (this is your tank gear).
the main difference is not VIT/STR vs STR/DEX. DPS gear has VIT too. the main difference is the Defense and MDefense stat. even if the gear has VIT/STR it's probably not tank gear.