Bolt pattern adapter?

I think you would be happier doing a conversion to the large bolt pattern. The parts are pretty plentiful off a 73 or newer disc brake A-Body. You can look at slant 6 cars, 4 doors, wrecked rusted, it doesn't matter. Do you have disc brakes on the front now? If not as a daily driver you will much prefer discs on the front compared to drums. What rear end do you have now? You can get just the axles if you have an 8 3/4 already, if not then you can upgrade your 7 1/4 small pattern to either a 7 1/4 or 8 1/4 big pattern pretty cheap too, possibly less then adapters. Also the adapters are at least 3/4 thick which means you might need wheels with more offset, like modern cars use.

I do think the adapters are safe I just think in our case it's better to do the conversion.