Apparently I just toasted the 5 speed manual tranny in my '02 TJ . I set out on vacation flat towing my tj behind the motorhome . I put the transfer case in neutral and the tranny in neutral and went around 300 miles to our first stop and unhooked and drove the tj around 200 miles or so . Hooked the tj back up to the m/h and went around 300 miles , slept the night , and towed another 300 miles the next day to our destination . I unhooked the tj to drive around and do some sight seeing and I couldn't get the transmission in gear . Wouldn't go in any gear . When I tried to let the clutch out it would make bad noises . Sounded like it was broke really bad . I just hooked it back up to the m/h and towed it back home . I took it to a friend of mine that has a small repair shop and he pulled the tranny and opened it up and it looked like every bearing in the tranny had come apart . A real mess ! I have been trying to find out what went wrong and why . I have flat towed (all 4 wheels on the ground) a lot of different 4 wheel drive vehicles and always put the transfer case in neutral and the transmission in neutral and never had a problem until now . Since then , I have gotten bits and pieces of info here and there , but not one complete explanation that makes sense to me . All agree that the transfer case should be in neutral . One scenario says that the damage comes from the tranny output shaft spinning without sufficient lubrication and that starts the whole destructive process . To avoid this , I was told you can place the tranny in 4th gear to keep the output shaft from spinning while it is being towed and thus eliminate the no lubrication problem and therefor no damage will occur . I guess the most burning question in my mind is why would the tranny output shaft be turning at all with the transfer case in neutral ? Hopefully there is someone here that can explain this whole mess to me and convince me that there is a safe way to flat tow this vehicle . I sure would appreciate it ! Thanks in advance .