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etching on the ring gear?

Discussion in '40- & 55-Series Tech' started by 1Fine40, Jul 20, 2005.

  1. 1Fine40

    1Fine40 Rust Buster SILVER Star

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    I'm working on a spare diff, and I notice there is some numbers etched into the edge of the ring gear??? Anybody know what they are? Pinion depth? Backlash? Preload? Or maybe they mean nuttin'? Inquiring minds want to know!

    Cheers!
     
  2. nuclearlemon

    nuclearlemon not an addict Moderator

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    iirc, it's teeth count so you know ratio
     
  3. cruiseroutfit

    cruiseroutfit Supporting Vendor Moderator

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    Some manufacturers do etch the gear specs (clearances) on the gear too... What does your say? What brand?
     
  4. 1Fine40

    1Fine40 Rust Buster SILVER Star

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    Let me clarify. There are some stamped numbers that give the tooth count and other stuff that I'm sure the manufacturer, in this case Toyota, put there. The numbers I'm referring to have been etched in with a scribing tool...I don't exactly remember the numbers right now, but I think it was something like 89?? These are stock Toyota ring gears..

    Cheers!
     
  5. cruiseroutfit

    cruiseroutfit Supporting Vendor Moderator

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    Could just be the inspectors number or some other casting code, etc....
     
  6. 1Fine40

    1Fine40 Rust Buster SILVER Star

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    Did a search, and after a bit found my answer....it appears to be the Backlash figure from the factory in mm....kinda handy if you are re-using those gears and want them quiet!

    Cheers!