Starter keeps breaker on the bottom hole. Just replaced flywheel

 

Need more vehicle details. What breaks? The mounting ear on the starter?

 

Replaced flywheel?
Ring gear
Flex plate?
If a standard trans and a flywheel, the ring gear itself could have been replaced using your existing flywheel
Both starter bolts need to be tight
You have the wrong starter or drive if it is breaking ears off the starter as you bolt it up
Post a picture or 3