I have a 92 sl 2 sedan, with sohc 4 cyl. and 5 speed trans.The transmission or clutch(?) wont engage the engine. I raised the car up off the floor and put it in gear to see if the wheels would move and they would not. I tried to spin the left side wheel to see if the right side would spin and it would not.No axle movement or anything. It seems to be going in gear sound wise( i can hear a click when i shift). If I have to replace it , how hard is it too take out and put another one in?....Thanks .. Mark