I have a 10 bolt in my Blazer and run 35 tires, and I have heard that they are really weak, although I've used mine for 10 years and not had a problem yet. I don't do alot of hardcore wheeling but I occasionally climb a few rocks. Is it worth all the $$ to replace and upgrade to another axle or could I just replace the 10 bolt innards with hardened stuff and get by. My motor is not a monster and I tend to be very conservative in the way I drive, both on road and off. Due to limited funding, it's easier to keep the 10 bolt and build it. Warn's kit it to much $$ and I am trying to keep the wheels I have. Is hardening the 10 bolt a waste of money?