http://wmberg.com/
P24A21-54
I found about what you were looking for except you have to bore it out bigger on the lathe. I'm pretty sure all that matters is spacing between the gears. You may have to do some extra work with this gear.
Also can you please avoid the all caps title next time. Everyone has an emergency time to time, your answer won't come any faster than it normally would.
Thanks,
-RC