Disc Brake swap-A body Rotors

Thanks for the feedback. I have spent a ton of time/money on the 8 3/4, so would like to keep it. I could start looking for axles, backing plates, drums, etc. I wouldnt even care about the two different patterns if i can get custom wheels to fit. Someone mentioned universal type rims/wheels? Is anyone using these on thier odd bolt pattern mopars?

I've never seen dual pattern 4" / 4.5" wheels except for front wheel drive cars, which usually have the wrong offset for an A-body. The ones I've seen in the right offset are always 4.5" / 4.75". You might want to email Center Line and see if they're willing to make them in the dual pattern size you want, though - they do machine wheels to order.