If you can locate a 7 1/4 Sure-Grip that will be twice as strong as the stock One Wheel Wonder as they have 4 spider gears and 2 cross pins vs the 2 spider gears and single cross pin that usually wear out.
As long as the rear end will eventually be junk running 300 hp, a simple first step would be to weld in the cross pin on both ends so that it cannot work free in the case. Leaving the 2 spiders free floating running on center to do their task.
First point of failure is the cross pin working loose in the case. With that the 2 spiders go out of alignment and Boom, out of business.
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