Semi floater,full floating rear axel.

I'm having a tough time associating those example photos to an overloaded tow vehicle. They (along with the narration) indicate that twisting force was the reason for this problem, NOT weight or towing. My 8.8" rearend is old as the hills and has been grenaded by my teenaged son trying to show off the supercharged engine (lots of twisting force!), yet the c clips and axles were unscathed. It's also been seriously overloaded, while simultaneously hauling and towing in very off road scenarios. 4lo is no stranger to my truck. I would think the bearings are the weak spot as far as weight. But if they fail, the axle will still be on the vehicle.

I'm with Gr8

On edit: I know I pushed the limits with my old truck a lot, and am now in the market for a new 3/4 ton (at least).