Be forewarned this may be a little long winded but it is all pertinent information I think. So I had made some repairs on my truck due to melting down an exhaust turbine in my valley turbo due to exhaust leaks at the pedestal. I took it for a test drive where I decided to do a test hit, I put it in tune 5, engaged auto mode on the BT lock box, engaged 4x4, engaged Tow Haul Mode, everything I typically do at the track. I did a mildly boosted launch at about 20-25 PSI, it spun all 4 for a bit then it rocketed out of the hole hit about 100 and I shut it down. All went well, no more test hits as I told myself I would not run it at the track again till I installed my 3.42 gears. Fast forward---I installed the 3.42s front and rear. Once again I need to go test drive the truck to make sure gear install is good. No noise at all , all was good with the gear installs. So I figured do a test hit, did a tune 3 this time, did same as before to prepare for the launch, this time it left good again except that when it went to shift it flare shifted the 2-3 shift, I forgot to mention I do 2nd gear launches. So when it flared shifted I shut it down cause that was abnormal. I decide to drive it back home , I pull up to a stop sign and it wants to pull me thru the stop sign, upon further examination I see its stuck in 5th gear and won't down shift. I turned it off and restarted it, it's back in 1st gear, I drive it and now its stuck in 1st gear and won't upshift. I get it home put it in park, then put it in drive and it engages hard, same thing in reverse. I leave it alone for a while then try it again , now I put it in drive and it barely inches forward then acts like I put it in park, I give it the gas it will rev a little then like it defuels and it feels like its in a bind, it lugs the motor. I put it in park and it will rev no problem. So no check engine light. I assume it was the converter and replaced it. Got done with the new converter install and it changed Nothing. So could it be stuck solenoid valves ? I don"t think its the clutches just because I had no prior issues with slipping. Any help would be greatly appreciated. I know codes would be helpful, but the check engine light is not on so I'm assuming it hasn't thrown any codes. Thanks Again
