sorry it was late and i wasnt thinking to clearly when i originaly posted
the 80 i bought was a bare housing for an 01 with disk brakes, no gears axles diff cover or brakes. it still has the paper tags on it. the guy gave me a set of old rusty hubs, kinda rough but still prolly good.
so it sounds like i can use my 70 backing plates and drums on the 80 that was suposed to have disks.
thanks guys