Thanks for the killer info guys. I definetly like the power I feel behind the 411 gears but my speed at 3500 rpm is about 50 Mph I actually dont know my speed because the th350 I installed has the speedo gears it came with. The spedometer says I'm going 90Mph < and a little old lady passed me in a chevette. Thats not a Joke either , It happened. I would like some kick and I would like a cruising speed of 70 Mph. Sounds like 3.73 is going to be the best. I will look deeper into the price though. Thanks again my friends you guys are outstanding...... DH