Here I am

I desperately need help with 48re

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2003 ram 2500 48 RE trans shift indicator show's park and neutral

05 transmission is drunk

So I just joined and I'm sorry if I'm beating a dead horse but I can't find a similar problem. I got the truck about 4 years ago clean 1 owner w/ about 260k. Been fighting with the trans going on 2 years and multiple shops. It started after hitting high water at 75-80 mph and instantly dropped to almost nothing. Showed 2 codes which were over and under boost. Codes were cleared and never returned. Since then shuttle shifting and it goes to whatever gear it wants when it wants unless cruise is set. Temp and speed don't change it. T/H helps some. Truck was stuck when it started except for a QUADZILLA which was removed when issue started. The first shop changed a speed sensor on the trans and it worked great for a couple of months then back to being drunk. Went back to them for warranty repair they said speed sensor was fine it was the governor pressure solenoid and transducer as well as power steering pump leak, water pump leak, and fluctuating battery voltage total would be $3,000.00 plus. I denied work and went to shop 2. Shop 2 had it almost 4 weeks and said they fixed everything. They didn't 3rd shop started checking it and went for a drive using his scan tool and the demanded and actual pressures were all over the place even at idle. The scan took showed the trans was going from 1 to park to 4 to 1 to 2 to 3 no pattern just bouncing all over no matter where it was supposed to be. Meaning it did it in P, 1,2,D,R. It feels normal on cruise at 65 but scan tool shows it's still erratic. It does about 2 months worth of shifting in less than 30 min. Some times it's hardly noticeable others it's kinda violent feeling. Has stalled twice and Boggs down almost stalling at least once a week. I was told it's an electrical issue with the trans but no one can find the problem or a solution. I thought of just replacing the trans and was told it wouldn't really help the issue. The owner of the shop and his tech spent 5 hrs with me trying to get the truck lined out. He said the trans can still be saved if we find the issue. Problem is no one can find it lol. I'll save everyone the poor me sob story on how bad my life is because no one needs that and it could be worse but I am getting increasingly more desperate and any ideas are welcome. I want to do everything I can to take care of this before it does destroy the transmission. I know if anyone can shed light on this it will be someone here!
 
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