Re: billet adapters safe to use ??
The "standard" back spacing on a 69 with 8" wheels is 4.75". I'd try them as is - if they rub it will likely be on the subframe. If you feel they need to spaced out, a 1/4" or so spacer should do the trick. You won't need an adapter - just a spacer. Yes they are safe. You might need longer wheel studs. 255 is pretty wide for the fronts by the way, but it's been done.
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