8.75 Axle tube. HELP!!!!

If it’s a 7-1/4, it may have 2 inch axle tubes instead of the later 2-1/2 inch tubes. They went to a 2-1/2 inch tube swayed down to the 2 inch carrier in the FJM years, I think ‘76 was still small tube but I would check as to what the crossover year was But long story short, may have to switch shock plates and u bolts for what’s on the Volare to make it work. Also, the spring pad mounts may need to be moved inboard.