I am installing a Speedway disk brake kit on my 49 3100 and am considering tack welding the included bearing spacers in place to the steering nuckle. For those who haven't delt with the kit, there is a spacer which slides over the spindle to space out the inner bearing and then necks down to allow the use of a larger I.D. inner bearing. I am concerned about the spacer spinning instead of the bearing as it isn't very snug on the spindle. Spacers from kits I have used on other vehicles in the past have had to be heated to red hot before fitting onto the spindle, and then shrink to a tight fit when they cool. Am I just being overly paranoid or am I missing something? I know this is a fairly common kit so hopefully someone can provide some insight.