Improper engine break in.

All these 500-mile break-ins? LOL it's funny to see what I said 5 years ago.,..
I was supposed to break in my motor for 500 miles and I was supposed to break in my transmission for 500 miles and I was supposed to break in my clutch for 500 miles and I was supposed to break my rear end in for 500 miles... LOL...
All of which made it to the quarter mile track before 50 miles lol... Five years later she's doing fine...