[Igofastr]

As for the brass hammer, do you mean for the spin-offs? In that case, you need a lead hammer. And yes, you do NEED the lead hammer. I have a 5 pounder, but I think a 3 pound version would be enough.

I believe the Kirkham wedsite has a little information about the proper tightening of the spinners, and I would suggest you take a peek. Finally, you must use saftey wire!

As for getting ahold of David, I've heard that they are in the midst of a new "super secret" project right now, and he may very well be unobtainable. However, I've always found the Kirkhams to be very helpful with my car, and I didn't buy it from them. You might find that someone else in the organization can answer your questions is David is not around. Just tell them what your question is, and you'll likely be directed to someone who can answer it...doesn't always have to be David, Tom or Steve.

Good Luck!