7 1/4 stock 400

So....What's actually going to break??? The Axles? Will the gears strip out?? What needs to be done to make a 7 1/4 bullet proof?? Were they made with some inferior metal??? I just don't get why they're so hated. Makes me want to try to blow mine up.

its the spider gears on a open diff...

ive never heard of any issues with the later sure gripped units of the later years...