Check the rearspacing. Front and rear may be different by a large margin. Keep in mind that these were rear wheel drive and may have lots less rear spacing in addition to the width being greater. It may work with smaller tires, but if you are already close , that might be a deal breaker.
Put your front tire on a curb and turn it to where it is closest to the fender. Take a measurement and do the math to see if they will work
Each truck can be a little different. Too many variables to give a canned answer.