I would like to be able to run lockup on my 2005 silverado 2500 hd in 3rd gear but when i leave off my petal to 0% throttle it unlocks.them when I roll back in the throttle it stays unlocked for a little and then locks again. Not sure what table to change to keep lockup on. I searched all over and figured out how to change it for 4th gear but dont know if anything is changable for 3rd. Also is there anything to change to keep lockup on when on the brakes as well.