Need help with my speedometer not working

[Krex]

Ok so I can not figure it out I am hoping to find some help

I have tested the cable by taking off the cable at the transmission th400 hooked it up to a power tool stew driver and I see the speedo gauge move and hold speeds... Then found that my gear in the transmission was broken... So I replace that for about 15 dollars. Put it all back together and nothing...

Is there another gear inside the transmission that may be gone or did I hook it up wrong?

Thanks in advance for the help