COPO Eaton Posi

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**big gear head** · #1 11-09-2017, 05:34 PM

Got a quick question for you. I've been building rear ends for 36 years now and I've seen most of the Chevy 12 bolt stuff out there. As far as I know the COPO 30174 Eaton Posi had special heat treated 17-10 tooth gears in it. I've got a guy telling me that he heard that they got 16 tooth axle gears and that the case was machined different for these gears. I've learned over the years to never say never, so I'm asking the guys who have seen more of these than I have. I've never seen or heard of any 16 tooth Eaton gears. Am I wrong?

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