Aluminum vs steel blocks

[chevy125]

What is the difference between steel and aluminum rear axle blocks. i have heard good and bad about both, but what would you use.

[cracked_up]

I have only ever used steel. Not sure I would use aluminum, maybe billet would be ok but still think the steel is stronger.

[travishale84]

aluminum blocks would crumble in a full size truck carrying any heavy load, or any serious off roading. steel blocks are the way to go. make sure they have a tapered top