Cluster Problems

I have a 1989 Nissan 240sx hatchback with just the base ka24e in it…my speedometer doesnt work but my rpms gas gauge and block heater etc all work…it is imperative that i fix this problem soon because i can only guess to how fast i am going by my rpms…does anyone know what the problem could be, a sensor on the tranny? maybe loose wires? or should i buy another cluster?

Speed sensor ($275 new) or speedo. One or both are broken.

is the speedo my cluster? and the speed sensor is only 160 dollars from the dealer

I have a speedo sensor check your Private Messages