I will most likley just re drill the holes to fit the size bolts. There isn't any reason they could not have done a multi hole flange on the carrier. There isn't a choice on the site where I got the gears.
I am even thinking about having the gears setup buy a shop so I don't have to mess with it.
I should have gone 9" ford for the rear and a 9" 60 hybrid for the front.