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Pinion and Posi give up

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Old 07-02-2004, 07:58 AM
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Default Pinion and Posi give up

These came out of my truck,ring and pinion were Precision gears. The spider gear is from the eaton. I haven't even been on slicks this year. Oh well, new parts are on the way. Pics added.





Old 07-02-2004, 03:19 PM
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did this happen on a hard launch or something?
Old 07-02-2004, 03:42 PM
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I think it broke when I was pulling out of a parking lot, crossing over those wide yellow stripes and nailed it. That was the last time i got into it before it started making the logging truck noise. New eaton posi and gears came today, I'll be rollin soon .
Old 07-02-2004, 06:41 PM
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Do you happen to know what material they are made of? 4340 Steel? Just curious.
Old 07-02-2004, 06:59 PM
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Get the new rear end parts Cryo'd
Old 07-03-2004, 07:41 AM
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what is cryo'd and who does it? I don't know what kind of metal they are made of.
Old 07-03-2004, 07:58 AM
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heres a place that does it
http://www.cryoplus.com/
Pretty neat stuff indeed lots of nascar teams do it
Old 07-03-2004, 03:47 PM
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I was about to be worried that my eaton posi I have wont be strong enough after all, but then I saw "511rwhp 491tq, 12.47 @111" in your sig I wont be making nearly that much power even after the blower.....I'm thinking about 390 rwhp
Old 07-03-2004, 04:11 PM
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I did a little research and I think the material is 8620 Forged Steel which is good stuff. You just have a lot of torque at the rear wheels.
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