[scherp69]

The biggest difference you will notice going to an aftermarket subframe is it will allow you to run 10" wide front tires and they have rack and pinion steering. You can make a few mods to a stock subframe and make it handle really well. Get a chicane kit from Speed Tech and do the Gulstrand Mod or get a set of ATS spindles and you'll be well on your way. Get a good steering box and a good sway bar added to it. If you don't plan on running 9 or 10" front wheels, probably no real reason to get an aftermarket one, just do yours up. As for using your global west arms on a speed tech sub...yes I believe you can, but take it from me, if you get the speed tech sub, you will want the high clearance control arms. I bought their sub planning on using a normal set of their arms, ended up selling them and got the high clearance ones.