I have a JD2955 I use for a "livestock" tractor with a 148 loader. I think it is around 90-100 h.p. What does J.D. and CIH have comparable now. Been so long since I traded I'm not familiar with the model no.s A friend said if CIH don't buy a jx, get an mx? Also some say mxu and mxu value? what's the difference?