HO aw4 transmission issues

[88mjsally]

So I bought a 93 Jeep Cherokee 4.0 2wd with a aw4. It only has 113k miles on it and was mainly used as an around town vehicle. The guy I got it from said it would act like it was in neutral after about 20 mins of driving in any gear even when put in reverse. I couldn’t even get it on the trailer before it did it to me. 
 

Brought it home and found a bad neutral safety switch so I changed that and no change. Also changed the tps with a known good one. Swapped a different TCM in too with no change. No codes are coming up and there’s no check engine light on. I’m leaning towards just changing the trans but wanted to see if anyone else had any other ideas. 
 

I drove it around some today after changing the tps and it idled around fine and I got it into second gear before it just acted like it was in neutral again. Cut it off, waited a few mins and I was able to idle it back to where it was sitting before it only had neutral. 
 

When it does this it doesn’t have any gear at all including reverse and unplugging the TCM to shift manually doesn’t work either