You have a T-100 4X2 it is a 1/2 ton set up your rear gear is 4.083 with rr abs Your axle(third member) is built for and only a T-100 it is not used on anything else I cross checked the part# 41110-34040 w(abs) and only the T-100 comes up.There are no supersessions(changed #'s) The rear axle shaft itself is the same one they use on the Tundra.
