any secrets to removing a arm shaft bolts

[dondb]

Have my upper and lower a arms out for a front suspension rebuild. Everything is out and a part, except I can't get the lower a arm shaft bolts out. I have a 2 foot 1/2" breaker bar with the shaft in a vice....and the breaker bar bends to a uncomfortable amount. I had to get a 1 5/8" 3/4" socket with a 3/4 to 1/2 reducer. That alone set me back 30 bucks! Maybe a cheater bar???? Probably snap the 1/2" breaker bar?