Well they will
As a matter of fact you can fit 33/12.50r15 also
just tweek the torsion bars and add a coil spring spacer to the rear


1990 Montero LWB V6 5-SP Locked Rear/33/12.50 Kumho KL-71 Mud Terrains/3" body lift,bars/springs/poly/shocks/custom skids/lots of lights/snorkle/etc......