Hey!
I just broke my right rear a-arm today on a curb(Funny thing: I also bent the right rear wheel of my car doing hand brake on a curb...)

So, I would like to know if aluminum a-arms are worth it, because I prefer to brake a 5$ piece than a 20$ one. I learned that the worst aluminum piece to buy was the spur gear.
Also, what about aluminum stub axle?