1. what is the actual bolt pattern? I know its 8 lug, but 8 by what? 2. what is the size of the tube, or in other words what size u-bolts? 3. Whats better to get, the smaller drums or the bigger drums? Yeah i know, noob questions..i tried to search but i'm on dial up and its taking for ever and i thought this would be quicker. thanks.