i have a auto gear super case m 22 in my 68 camaro its a street driven car that runs 10.80 at 132 mph at the track i have been pownding on it for about 3 years now, big burnouts big wheelys and no troubles so far, i think they are about $2500 my buddy owns a tranny shop so no charge to me lol but the tranny is a direct bolt in and takes a beating, i heard something about a 5 spd that was coming out or maybe is out now.