From '74 -'78 they should be as the Pinto and MII shared similar platforms. I would be careful of the pre'73 Pintos as there were some differences. Never swapped rear axle assemblies between a Pinto and a II, so I can't say 100% for sure. I believe that a majority of the Pintos used an integeral rear axle with very few using an 8" as seen in a good number of IIs. I did have a Bobcat wagon that had an 8" rear, so pintos did have them as an option.