TWest It was professionally installed,(if thats what you want to call them) The installer backed off the rack, put it in drive and he said it felt like it was in high gear, he got out of the truck ,pushed something (maybe a connection on the harness)under the truck and it pulled fine. I have already put 150 miles on it and it pulls hard with no shudder,shifts harder then stock and seems to be just fine. I realy like the way the transmisson feels. I checked for codes after the installer came back from the test drive, he was gone about 2 minutes. Thanks for everybodys help and replys. John