Shipping an 8.75 center

A plastic container will crack the first time it's dropped if the temperature is under 40 degrees. It's like this; the carrier itself is the thing that will destroy the packaging; not anything external. So, just try to cover it up, not protect anything but the ring gear from shock. You could use some old car seat upholstery to wrap it up in. A couple of handles on it would help the shippers handle it. If they have to bend over and use two hands, they'll get pissed and throw it around.