2nd to 3rd Hits hard
On my 08 I'm running the Spartan 310 and no matter how I open the throttle my 2nd. to 3rd. snaps and jars during the shift. From time to time if i WOT bleep or run it hard for a few......It will going into this limp mode like it's taking off from 3rd. I have to hit the tow/haul a couple of times or turn the truck off for it to clear. I'm told it's an adaptive trans but this is ridiculous. Is this a bad file from Spartan? My buddy has a Mini Max HotDamn 300 on his and it shifts smooth all the time. I'll be damn if I'm going to jack up a trans with a corrupt tune.