Brake Upgrades/lockout hub

[CrewDawg]

couple of questions.

1. For those that have upgraded brakes. Is it better to go with Hydro brakes or put a 1ton power brake booster in place of the half ton.

2. I replaced upper and lower ball joints on my truck. I had to take the hub apart. Know the hub will not come out of lock. So, I had an extra hub from my old 72 1/2 4x4. The hubs are no where near the same. So, question is how do I get the hub unlocked and why do you think the hubs are different.