I am 90% sure you are wrong. It has something like am 8.4" axle that may or may not be the same one used in T100's, non TRD tacos and Tundras. You can get a E-locking 3rd from a LC but from reading the Slee offroad page, the conversion requires some grinding and welding and that an ARB would be easier.

But it definetly has the beef needed to hold up to 35's.

85 4Runner, 4" lift, bumpers, sliders, locker