Thanks, Mike. I know my brother has a cool shifter in his car, but I don't know what brand it is. I'll talk to him about the Viper input shaft, if it's readily available and not too pricey we'd probably both go with it.The viper input shaft is a good upgrade while youre there. Maybe have your bother check out ls1gto.com for any input from those guys on their trans. I know some guys have issues and build them but mine has been fine at 500+ RWHP. I have the MGW-P shifter by proxes in my GTO and love it. Another good one is the billet but its more expensive.