Quote Originally Posted by 83rampage View Post
Can you explain this? I looked up bearing race hardness, and the mighty Google says 60 RC is about right.
I expected to see numbers in the higher 60's. Based on your research, it looks like my expectations were a bit high!

Quote Originally Posted by Dr. Johny Dodge View Post
what's the trans again ?

re welding the case .. 555's have a heat treated case , 520's do not
I know this has been debated for a long time. Is there any actual indication of this?