ok so i rebuilt my 6.0 this year should be around 580 hp now and the tune is light they backed it off alot so i didnt smoke my tranny instantly. ive been driveing it and it good so long as i dont get on it hard but who wants to have ll that power and never getto use it ? so when i do geton the throttle the tranny wont shift unless i help it by letting off . i knew id needtrannywork but never researched it . who makea great tranny that i can get for under 5grand ? is BD any good ? and since i'm swapping it out i dont ever want to do it again and i plan on adding more stuff.