Chris, if you buy every single brace/support/cover/posi unit/axle for your 10-bolt, you’ll end up investing nearly enough for a bullet-proof 12 bolt. The factory gears are brittle. Aftermarket gears like Richmonds are softer, so they can absorb some shock, but they also tend to howl. Get aftermarket gears, the cover, and run it. You have an auto. Auto trannies will shock the rear-end much less than a M6 car will.