No clearance at all towards the back of the engine.... I am going to go out and remove the crank pulley. I am going to go to the junkyard and try to match one up. My idea is to weld some steel tubing to the outside of the pulley and then stick my breaker bar in the tubing and let it rip. That should allow alot more torque than the turning the center bolt..... I need to think outside the box like "MacGuyver"!! TBF