39 tooth speedometer gear

Looking for a 39 tooth speedometer gear for my 68 Barracuda.
I believe this one is dark green in color?
Put a 38 tooth in and speedo reads just a little too fast.
I know I can buy new but figured I would check here first if anyone has one lying around and wants to part with it! PM me price shipped to zip 57004 if you have one available.
Thanks!