They are the same.... and backlash settings are the same.....The difference is the carrier bearings, they make bearings that will allow a 8.5 carrier to work in a 8.6 rear end but not the other way...
.008-.012 is the settings for 8.5/8.6
You don't work with suspension or rear ends. You don't know! Didn't you screw up a Moser last week?
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