Sending unit for aftermarket speedo

[rotomoto]

Hello all,

I am in the process of building a custom dashboard, and I am looking to get an aftermarket speedometer, but I am having a hard time finding what type of sending unit will work with a tII tranny. Most sending units I have seen are for domestics (ford, mopar, gm). Are there any direct fit units out there? If not, does any know the thread pitch and number of gear teeth on the transmission for the speedo gear?

Thanks in advance