If you put a locker in it you will be more prone to break an axle or u-joint because you will allways have full power to the wheel with the most traction. I can't remember for sure but I think the bronco dana 30 uses a smaller axle u-joint than a jeep does.
Sorry, gonna have to keep that one too! I've owned this Bronco 14 years, it has been parked awaiting attention for 11 years. No reason to get in a hurry
What motor, tranny set up are you going to use? I've seen some really cool ranger bodys on a old bronco rolling chassis before. You just have to make the bed short.