I had changed the transmission recently in my '95 wraingler with the 2.5 L engine. The transmission that was previously in this jeep had a bent main shaft. I found a used transmission, and installed it in my jeep. I was having trouble shifting and the clutch was not engaging. I pulled the tranny out and found the throw out bearing was toast - I did not put a new one on it when I got the tranny.
I Put a new throw out bearing on it, and put the tranny back in. It seems like it is doing the same thing again - it's hard to shift and not smooth, and if you want to put it in reverse, the clutch is not engaging.
The guy I bought the jeep from had a new clutch and pressure plate put in it, and it probably has 2000 miles on it since that happened. My dad thinks that the clutch or pressure plate is bad, since that is what usually caused the throw out bearing to fail.
I wondered if anybody had any other thoughts - I will probably put in a clutch and pressure plate, but wondered why it would have failed already.