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Old 01-28-2013, 05:58 AM
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change to posi -
Read this, post number 2. This is for the 8.5 10 bolt. The only difference is that the 12 bolt has 3/8 ring gear bolts with right hand threads and the torque on those bolts is 40-45 foot pounds.

All you need is a new Eaton Posi, a set of bearings and a super shim set. You need to know what your gear ratio is before you buy anything.
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