No, it's listed as Private Party. Mine's locked front and rear, on 35's, pretty much able to spin them in any situation. And mine does ok. I stick with my thoughts of Mitsubishi provided enough torque. Even though all the mods you mention would help with torque.

89 SWB, V-6 5SPD, OME Shocks, 16.5X37's, 2"BL, SR axle, Gen2 brakes, Lincoln w/Superwinch