When did you buy your trans?
If you have received a new trans in the past year or so, it will likely have our new Gen 3 shift mechanism, and require this dash display kit, which we do have in stock, you just have to call me and order directly. https://weddleindustries.com/products/8-S45-DM-A/8-S45-DM-A
If you have an earlier trans with the larger front "boss" sticking off the front cover, then you will need this kit: https://weddleindustries.com/products/8-S45-DM/8-S45-DM
Both of these can be wired into a digital dash display, but you will need to manually program the display for each gear position. You can buy the Gen 2 and Gen 3 sensors separatetly if you do not want to purchase the separate display. The Gen 3 mechanism uses a much higher resolution gear position sensor that has a "finer" voltage readout that is much better for No-Lift-Shift actuations through the ECU.