A/T or manual transmission?

Y0U MUST CHECK THAT THE FRONT TIRES AND THE BACK TIRES HAVE EQUAL PERIMETER, FOR EXAMPLE: NO NEW TIRES IN THE FRONT AND OLD ONES IN THE BACK.THE SYSTEM IS GIVING THE SAME ROUNDS FRONT AND BACK SO THE PROBLEM HAPPENS BECAUSE THE SYSTEM WINDS UP DURING THE 4 WD FUNCTION. SO FOR THIS NOT TO HAPPEN YOU NEED TO HAVE 4 EXACTLY THE SAME CONDITION TIRES AND DIMENTIONS ETC.