aftermarket cross member?

Who makes a complete aftermarket cross member for square body? From a-arm to a-arm. I'm just looking at my options to see what's out there if there is anything. My plain is to Z the frame an run 22's.. thanks for the help..

This is my first dually build and bag build. Always love the squre body dually so I sold my LS powered 96 Chevy to build one.

yeah porterbuilt really makes a nice cross member thats wat i got for my truck should be here in a few days and then i got my a arms from michigan metal works his 3/4 in flate plate are are just sick and they are cheaper then the porterbuilt ones

so there $1100? that with out the a-arms, bags, rack? so basiclly you get the cross member with motor mounts. i plain to put a duramax in the truck would that be a problem?