Revedup57, if you're asking about what years to use for the popular MII set up, it's Mustang II, 74 thru 78, Pinto 76 thru 80. All of these use the same components. Control arms, racks, strut rods, etc are the same. I'm not sure about the years, but some of the stock crossmembers are different angles at the top control arm mount. I've got a 74 MII, a 80 Pinto, and 1 other stock Ford crossmember in my shop now. Two are the same, 1 has a very different top angle. All other parts are the same. I've got probably 8 or 10 control arms from these and other stock Ford crossmembers and they all look the same.
