whenever I take my truck out the shifting gets erratic after about 5-10 mins of driving, I have a tranny temp gauge in the hot line before the radiator and the temps are staying under 150 degrees. The issue is now when on the highway it hunts, tqconv locks and unlocks erratically and goes in to limp mode randomly. I have replaced the vss, tps and psom all in the past two years since I had this problem before and replacing the PSOM finally fixed it. with that in mind ever since I got the new PSOM, the speedo has jumped around from 50 to 70 mph. along with those issues it wont shift down till nearly stopped sometimes. I have heard abs can cause issues with this and want to look into that, let me know any suggestions or further questions.