I have an MX5100 4x4 I bought used. It has 17L-24 rears and 9.5-16 fronts. I looked at the tire specs in the owners manual and it said the standard tires are 14.9-26 rears and 9.5-16 fronts. It also lists an "Industrial" option of 17L-24 rears matched with 12-16.5 fronts. all of these sizes are for a 4X4. It appears that I am miss-matched. I don't want to damage the tractor so am I ok with this setup or should I be considering replacing the front or rear with the matched size?