Thanks for breaking it down for me StarTech. Good advice in regards to not deforming mandrel during job.
When you suggested I use a bearing splitter for the job, is the picture attached the type of kit you were talking about?
Sounds like a hell of a job on the toro. I assume there is an engineering or safety reason as to why they use self tappers for the spindles instead of the proper grade bolt/nut/lock nut/thread sealant to avoid the bolt breaking problem? Or do they select self tappers because the bean counters want to save a few pennies?