Odometer doesn't work

I have 94 J30T & the odometer doesn't work. I have replaced the instument cluster twice & it still doens't work, so it's not the cluster.

Any suggestions? I cannot get the car inspected in NJ without the odometer working.

Sounds like speed sensor is busted. Its usually bolted on the transmission. You can probably find its location on google. It could also be wiring from the sensor as well.