F body rear leaf spring mounts

I would think you could use your 7.25 plates IF you remove the whole "Iso-clamp" (or whatever that hideous mutation is called...) assembly from the Aspen springs. I don't know if the U bolts will be long enough for the Aspen spring pack, but they should. Be prepared to drill out the plate's center hole or to replace the spring bolt with one that will fit your shock plate. I do remember those iso-clamps/cushions are a pita once they get rusty. As a last resort check the FMJ site- but things are kinda slow over there... Good luck!