SORRY GUYS THIS IS NOT A 150 but you ben so much help I had to ask. I have a 1998 explorer sohc 4.0 flywheel BROKE from the crank, dont no what caused it if somthing in the engine or could the trany locked up. the trany is a auto, it makes noise when you turn the torkconvert. i can turn the engine over . i just dont want to change the trany and then find out there is some engine damage. 101000 miles thanks phil