WELCOME to LMF...
Broken bolts are a big problem for everyone that has to deal with them...
There are several ways to go about it:
LOTS of PB Blaster (one of the best penetrating oils)...
Get the proper size "Easy Out" (you will find nothing about this really easy)
START with a center punch & then Carefully using a
LEFT HAND drill bit, drill out the center of the bolt.
Apply MORE PB Blaster, (you will never use too much)...
Use the easy out be careful that you don't tweak it off center, they are very brittle and can break....
If you are lucky, the left hand twist drill bit will remove it as you are drilling out the center of the bolt...
If not so lucky the easy out will turn it out...
If completely Unlucky you will be buying a new spindle... good luck and
post back with your results...
There are several techniques here are some youtube clips:
easy out bolt remover - YouTube
I have my favorite way of doing it... but there really is No Best way for All bolt sizes, grades and types.... :smile:KennyV