So an update. I took it out this morning in case possibly it was something that had maybe got wet and dried off and possibly correcting the issue, I had this happen with getting a spark plug wire wet once threw engine code and misfire but ended up drying up and correcting itself(was on a dodge ram I had). First two minutes of driving I was happy. Felt normal it shifted to 2nd and then it actually shifted to third, I was like YESSSSS issue gone. This was unlike yesterday where it would not shift to third at all. However it never shifted to 4th so my the thought of the transmission actually being bad became more of a reality and not just a faulty wire or solenoid, or something electrical.
After it warmed up a bit(driving about 5 minutes), it got worse and I noticed it started slipping. Would go to high rev's before sometimes shifting to second and same thing going to third. In second it would sometimes go to 3k+ rpm's and backing up on the throttle would sometimes put it in third. This was a hit and miss. Same thing going from 2nd to 3rd gear. Sometimes it would go sometimes I would have to let up off the throttle and would eventually shift.
So in my mind the Tranny for sure needs a complete rebuild or replacement. Something I cannot do on my own in garage. Called one shop and want's $3200 for tranny rebuilt. Wish I knew someone with a shop here that could lift and help me do the swap if that was the case I would probably take it on. If not probably going to sell the truck to someone that has the capability to do so. Just really sucks the motor and everything else seems great no issues drives really good(before tranny issue). Second time I have had a tranny go out on one of these trucks. Previous was a 1999 Silverado 1500 STL. Just really frustrated at this point.