a while ago I checked part numbers and noticed our diesels have different part numbers for front axles...which doesn't necessarily mean Monty ones won't fit, it means mitsubishi likes to screw with our heads. I would tear your boot off and see how it looks inside, you may be able to get away with just re-greasing it and putting a new boot on. I ran for 3 months with a torn inner boot and the balls still looked like new even with the 2lbs of sand that came out of there haha.