I dont know what the part numbers are just yet, but a np241 speed sensor only has 4 pulse per driveshaft revolution. The LSX PCM needs to see a 40 pusle signal. I will see if I can get the part numbers but search for "Jags That Run" and they should be able to help you out. Someone also makes a driveshaft mounted VSS but that didnt sound like a great idea foe what we do with these trucks.