I have an early 60's MF302 which has seen some long hard years work. One of the front wheels is now being held on by about 1 1/2 lugs and I am trying to figure a way to fix it. This machine has the original heavy cast hub and I'm wondering if it is possible to drive out the old broken lug bolts and replace them or if I may have to drill them out and tap in new bolts. Any advice would be appreciated.