If you plan on doing hi power clutch dumps, then yes your 7.25 will eventually grenade.
But if you drive it respecfully, you can make it last. But in reality, you will be taking 2 steps back, with the 7.25. Plus you more than likely will need a new driveshaft, u joints, ect. You might also be messing with a ball an trunion u joint.Just some things to take into consideration.
You might be better off with a big bolt disc upgrade on the front.