i run an AOD behind a semi hot 351W.....4.11's out back.....I LOVE THAT COMBO.....cruse 75 at 2500.....easy mechanical kickdown to about 65 mph......18-20 mpg with 400 horses......i looked at the bauman stuff, looked at the aode, bought an AOD from Hughes with a 2500 stall converter ..... by far the best for smokin the tires and crusin at 70 ...... its perfect confirmation of the old KISS principle