Welcome to the forum,
The answer is don't take the hub clamp past the end of the axle.Get one very strong person, or two!!
Jack the axle housing and block all wheels to prevent rolling. Block the jacked axle, do not rely on the jack. Soak the clamp and rim bolts in penetrant to help loosen. Use a 3/4" drive socket w/breaker bar and pipe to tackel the clamp screws. They must be very tight when finished, to prevent movement. The rim can be mounted in four ways to the cast iron part of the hub to change width. The hub is dished and can be mounted on the axle either dish out, or dish in. You may need to turn the tires/rims around so that the right one is on the left and vice versa. You will need to change the rims/tires so that they go in the correct direction. The worst case is if someone cut off the axles. If they have little centering holes in the end of them, and look machined, they are probably original. I hope this helps. JimN
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