From what i understand, the entire rear section will bolt right in our G8's. The only thing that will not bolt on is the rear sway bar. The Camaro rear bar is shaped differently and will not clear the G8 rear floor pan insert. A few of us are replacing the rear G8 Knuckles to Camaro assemblies which will improve the rear suspension, and fix the Ebrake issue. However, the Squash performance brackets are by far the easiest way to get the rears working, but again with those brackets, you need to have rear ebrake shoes made, switch to the Camaro knuckle assemble and ebrake setup, or lose the ebrake altogether. Are you an Manual or Automatic?