Steel wheel, SBP

RedFish said

I cant say yes it will be a problem. Yes you could probably have a special spacer made to fill the voids. I wouldn't run them. They look like they were designed for some other application, something with disc brake hubs maybe ?

The Magnum 500 wheel is a good example here. These wheels dont have the 2 continuous rings as seen in your pics. Instead each lug hole is in a stamped finger like area. The whole world knows about wollered out lug holes in them.

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Xs2.
Being centered on the hub (hub centric) is desired but not something that is a must be. Look at all the aftermarket wheels on the market, few if any are hub centric. The wheel hubs being different depths on the rings is intresting, I have never checked my OEM wheels to see if they are like that but of course they are 14".
Can you post a picture of your hub/brake drum assemblies? Is this car disc on the front? If so can you post a picture of the disc set up also? So far the Aussie discs I have seen appear look identical to my discs but there has never been a close up picture.
As previously stated you could have a special made ring/spacer to correct the problem.