Bought trans from 99 F150 to put in my 97 F150, it went as well as it could until I got to the neutral safety switch. the new trans had a 11 pin neutral safety switch and the original one only had an eight pin , so i switched them and thought i was OK until i started the truck. the overdrive button on shifter is blinking and i have a trans code of:P0750- shift solenoid "A". If any one has some advice or knows what I need too do PLEASE HELP!!!!!!!!!!!!