Originally Posted by 83rampage 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! Originally Posted by Dr. Johny Dodge 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?
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