Hmm. Thanks for the article. I thought the AOD would be a better choice over a C4. I didnt realize that the AOD had its issues. I will be running about 300-350 hp. with a 4.11 posi. I wanted the extra gear for better highway speeds. Any opinions? I cant spend alot of money re-working the AOD to make it perform better. I didnt know that you had to go from 1st to drive and back to find second. Thats sound really wierd. I better read the article again. Thanks Again.