the other day i broke off the neutral start back up light switch off the tranny i had been towing realy heavy that same day had the tractor round baler on the trailer and the hay rake behind that crossed the scale at 40 thousand pounds transmission shifted great never got hoter than 175 with the sensor on the transmission line i am not sure which line but my trany builder put the sensor on so i am pretty sure it is in the right place any way i got home unhooked the trailer didnt unload it it was dark . parked and shut off the truck came back out the next morning and there was a big puddle of atf under the truck i crawled under and found that the neutral start saftey switch had been broken off there is no oil sprayed under the truck on the frame or anything and im sure all the oil went out while it was in the drive way . i replaced the switch and refilled the trans with oil now it will not shift first to second without getting the rpms up to 2200 even if i let off the throttle . i wrote to dtt and they said to replace the tranducer and the governor solenoid i did and it still wont shift any ideas thanks