on the T-56 family you usually have a
1) Reverse light switch - kinda self explanatory, one wire gets 12v, the other wire runs to the reverse lights to power them when the switch is triggered
2) Neutral Safety Switch - Can bypass it if you're running the factory clutch switch on the pedals or you can wire it in lieu of the factory switch - would just be a one wire ground to one side and a wire up to the starter relay ground terminal
3) Reverse lockout - You can wire it in parallel with your brake light switch (will activate it when you brake) or you can simply leave it disconnected. It is a little spring so make it easier to get into reverse but you can shift to reverse without it being activated without much effort.
4) Skip Shift solenoid - F*CK this thing... don't need it - don't wire it. Dumb thing