Ok, so it is beginning to get to that time of needed a new transmission or getting the old one rebuilt, however I would like to change over to an AOD for that extra gear for those highway trips that I occasionally make. Especially with changing out the rear end gearing to 3.55. Now is there a particular brand of AOD to look for IE TCI etc? Or is it better to go with a stock AOD. It will need to be built either way for the power I am going to be making. Any recommendations on brand or should I just straight build a stock AOD? I will be making over 500HP BTW if that helps sway anyone's decision.
Just that little red button there on the shifter. 