Front end issue - Need to know what a part is, so I can replace.

[1nertia]

Wow mate if you can get a GU front diff for $400 disk to disk grab it mate! Worth 3 times that. I'll have it for $400

Grab it and fit her up mate. Wider, bigger brakes, bigger cvs bigger axles bigger everything

GU? I wish! I can grab a GQ front end for that much, which seems to be the way I'll be going, cause I can't figure out what I'd need to do to GU it up front.