Puzzled Jeeper

Ok I replaced my o2 sensor, it runs fine. But occasionally it acts up. Doing the same things as when I didnt have no o2.

Today I went offroading, out in the country. Primarly just to have fun and get my jeep muddy, to cruise the strip on Friday night. Getting all the stares. So it rained the past few days, and I thought I could do some limited mudding. I do some stuff, it runs good. I make the engine work, it runs fine. Do some hill donuts, good. Get to level ground doing some limited crazy stuff, and it stalls out like all the times before when the no o2 sensor was causing things. Its like 11pm dark, im freaking. Luckily im a half a mile from ohv entrance, so I can get AAA to come. I figured I would limp it out and call. After about 3 times of rev'ing the engine on start up so it didnt stall out so I could drive it, 30 feet, after 3 times doing that, the thing drives normally again. I normally flood the engine, and rev it high when it acts up like that.

There must be something else causing the computer to make the engine do that. Is there an other o2 sensor higher up, perhaps hidden underneath the manifold? Or perhaps even the throttle body sensor thingy is fried. Or another sensor I dont know about. I was thinking there should be an air sensor on intake, that is probably on the throttle body part. My old mazda had it on the plastic tubing after the air filter but before the engine.

'93YJ 4L Inline 6 5 speed

Another problem im having is the jeep rocks when in 3rd, almost makes a clunking sound, but rocks. Like the drivetrain is moving forward and back, its not, but thats what its doing. Could this be due to low fluid in transmission and rear axle? I cant find the filler bolts for the trans, rear axle is easy. But I think its the trans fluid. Or could it be a slipping clutch? I dont know what a slipping cluth acts like. Im almost thinking it has something to do with 3rd and 4th and maybe 5th gears. Never does it in 1 or 2.

First off, Do you have an "check engine" light on? If so, goto your local auto parts store and get the computer read, this will tell you what electronic sensor(s) are acting up. If your flooding the engine, it could be the fuel pressure regulator, get a pressure guage put on and see what your pressure is. Also, when was the last time you had a tune up done, and what do you mean by no o2?
As far as your "rocking" driveline, check you engine and tranny mounts. If they are broke then you can damage other items on your Jeep. To test your engine mounts, put your E-brake on, tranny in 1st, adn slowly let out on the clutch(with a little gas) watch your engine, if it lifts up then you have a bad mount on the DS, do the same in "R" to test the PS mount. I suggest that you not do anymore wheeling till you get these problems fixed, to save you further repair bills, not to mention recovery bills.

I know, too many things to "fix", Too anxious to wheel :)

I am sorry I didnt realize I posted like 2 or 3 times on the same thing.