I took the front case off of my 2wd and put the 4wd case on it off of my donor bike. The two machine’s motors are exactly alike other than the front cases. I have read in so any places where this is not possible. It is. My Honda dealer said they didn’t know if it would work and told me to go buy a 4×4 and don’t try and make one. Well, Honda made it, i just played with it a little bit. I pulled the front a arms off with the knuckles and a right and left assy. I didn’t want to risk the a arms being different as that is very possible. Plus, i didn’t feel like fighting upper and lower ball joint nuts, so I left verything together. While it was all apart, I replaced the wheel bearings. It is easier to swap the cases than it is to swap motors. I swapped the case with the motor still in the quad.

Good luck!

Don’t ever let anyone tell you that you can’t do something!!