I can get this kit for $100 its a hard plastic. I can spend a little more and get a poly. This offroad shop said that aluminum squeaks. I've had aluminum lowering blocks before and have broke them so I'm not sure about aluminum. I could use some help.

 

Damn, how tall was the aluminum that you broke? I had 3in ones on my Cj and wheeled the hell out of it. Never broke one but did rip a couple from the tub. The M.O.R.E. ones I got now on my JK don't squeak, I would think the plastic or poly ones would tend to squeak alot sooner than the aluminum. I couldn't tell you if the alum ones on my CJ squeaked over the poly bushings on my Rancho lift