Wow.. I would honestly run 4:10 gears (just in rear), That should run good if yer running big TIres, just from young Experince I was only nine,My stepdad had 86" Toyota Pickup (Xtra Cab?) SR5 Lifted runnin 39.5' M/T Bajas on only a 2.2 RE Toyota Motor, It had trail master suspension, and some 2 or more body blocks(lift),,,roll bar,Kcs, the werkz
That Joint of yours would make it through "puddles just as fast as a 4x4 model would"Running those gears
Is it 4x4