wow that really awnsered his question the awnser is you can put about 90 to 100 hp over stock but will wear out twice as fast without a good TQ my other truck has a stock tranny rebuild with a BD triple disc TQ and about 450HP and works just fine so a complete stock tranny depending on how many miles on it woulding go over 90hp. plus your typical 47RE if thats what your using at about 120,000 they just go out all at once