Rear drum to disc brake swap

Trying to convert my 70 Dart 8 3/4 from 10" drum to rear disc brakes. My axle offset is 2.185", all the kits I have tried are (Wilwood 2.36 and 2.50) and the rotor hits the adapter mounting bolts and bracket. The axles are Moser with there MO400 bearing. Anyone ran into this issue? Thanks Matt