Quote:
Originally Posted by ss125h
John, I run same car, but a lot less torque (340) with 8.75 ,point is we always have the gears heat treated. Have had very few problems, even running close to 3700 lbs. We do run 6-12 thou. bk-lash, with auto trans. good luck. Glen H 1257
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What hardness do you have the gears heat treated? For 8620 and 9310 steels the tempering temperatures are in the 300F to 450F range.
https://www.emjmetals.com/pdf_indexe...loy_Steels.pdf
https://www.emjmetals.com/pdf_indexe...denability.pdf