2000 F-150 TUCKIN 22'S WITH A STEP SIDE BED

ARE THE DIMENSIONS OF A STYLE SIDE BED THE SAME DIMENSIONS ON A STEP SIDE BED FOR THE 2000 F-150'S, I WAS THINKING OF SWAPING OVER TO THE STEP SIDE FROM A STYLESIDE AND DONT WANT TO HAVE ANY PROBLEMS WITH HAVING TO BIG OF RIMS TO FIT IN THE WHEEL WELLS. ANY HELP IS APPRECIATED.