The Stovebolt Site Forums The Parking Lot Tons 'o Fun anyone change out their 5.17:1 diff gears?

Thanks Sub, Can you tell us where those 4.10 Eaton gear sets can be found? I thought they existed but in what vehicles and years are they And are they a "Bolt In" swap like the 1967 thru 1972 Chevy 3/4 ton with auto trans. and a few other applications with the 4:11 gear sets. Thanks, Jerry