get new aftermarket rear axles in 5 x 5 or have yours drilled as well as the drums to match. on front, have to change hubs and drill drums or rotors. there are no 5 x5 drums or discs that fit the A body backing plates and brakes, unless you convert to the full size brakes. This is a lot of work. Finding adapters should be easier, but then the offset will be changed for the rims and not as strong as without adapters. not good for any kind of rapid speed, adapter will fail.
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