Separating an animated mesh into parts

Hi all, I searched for the answer to my question and have been unable to find it.

So, I just bought a nice mech model from the asset store. It looks great, but my game requires being able to move the torso separately from the legs. The model comes with several animations, and I would like the separated pieces to still animate properly.

Is there any easy way to put the legs in one model and the torso in another?