Mines been converted to 12 v already. I have the back wheels of he ground to try to free the drive train. I can spin the drivers side but the pass won't move. Spinning drivers side doesn't seem to move the drive shaft. Is it likely in gear or locked up brake or bad rear end? If drive shaft won't spin should I still be able to turn the motor by hand? The motor looks ready to try to start but figured I ask first.