Grant Tuff Wheel Install

@BrianT thanks for the info. I wasnt too concerned about drilling out the wheel holes, other than having to drill a brand new wheel, but getting the horn to stay mounted was a concern. I thought that I would possibly have to use the adapter(that slides onto the splined shaft) that comes in the Grant mounting kit behind the wheel so that the round retainer piece can bolt to it, otherwise there is nothing for it to bolt to, and therefore nothing for the horn to attach to.