beadlocks

thinking of going allied rockathons, daytona style , and input on these. and also whats the deepest backspacing i can run with a 15x10 inch rim where it wount interfer with brakes or steering on 1978 44 and nine inch with a 12.5 inch tire. any one?

I just got a set of the daytonas. Lots of good feedback on the allied's.
I went with 8 inch rim and 3.75 bs for my 38x12.5 tsl/sx's.

my rubber on the current 15x8 and 4 bs beadlocks contacts the lcas. went to 3.75 so I can turn the stops back in and get the ram going full turn.