The 4T80 is an automatic Dan.. and that'* PontiacJeff, yes it'* done, yes it works.
A few W body guys have put the G6'* 6 speed into their cars. It'* possible, and does take a decent about of fabbing/modding. There'* a local Regal buddy of mine that I'll be helping with this as soon as his funding is in place. He has almost all the parts and transmission. I'll be supplying the cradle off a Regal I gutted last week for mockup of transmission mounts. Heck, I'll probably be supplying a motor too.