'70's model ford lift kits?

[workinprogress]

Does anyone know a good place to find lift kits for a '76 f100? I am looking for something to lift it 8-9 inches and so far all I can find is 6 inches. I have found front 8 inch coils, but no springs for the rear. I would really like to stay away from blocks as much as possible. Or does anyone know what the difference is between the suspension on a '76 f100 and f150? If there even is a difference. I can find 8 inch lifts for any '70's bodystyle f150 all day long, but not for the '76 f100. Jeff's Bronco Graveyard offers an 8 inch kit for a '77-79 f100, but they couldn't tell me the difference between a '76 and a '77. Any Ideas?