A piece of steel with a couple strategically drilled bolt holes to accomodate bolts/nuts that will reach in between the sprocket spokes will work just dandy. Nothing you can't find at Home Depot.
The crank sprocket is probably just stuck on old, dry oil. Soak it a little and use a bar to walk it off. Or use a gear puller...
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ASE Certified Master Automotive Technician w/L1.
ASE Certified Master Medium/Heavy Truck Technician.
Certified EVT (Emergency Vehicle Technician)
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