I have used custom made hub centric wheel adapters on my wide body Pantera for years without any issues. They are safe. Off-roaders use them all the time and I have never heard of one breaking or coming off. The adapter is bolted to the hub and wheel is bolted to the adapter. The lug nuts holding the adapter to the hub MUST be torqued to 90-95 ft/lbs. Motorsport Tech in Reno Nevada can make adapters to your specs.
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