Chaz 58,
From your picture, it appears externally that everything is where it should be (component wise).
Since the plastic drive gear inside that threaded plug is normally not tight sealed to the plug itself, excessive lube (overfill) can leak out through that space.
Would be a good indicator that your trans is most likely over-filled.
NOTE: The speedometer not working is also a good indicator that there is something amiss with your cable drive assembly. The plastic driven gear could be sheared which would account for no speedo function.
Next thing to do will be to pull that speedo drive plug and see what is going on inside.
Let us know what you find please so we can continue to try and help.
