Speed sensor question

As far as "will it fit", yes. Can't say for sure if it will work for your particular aftermarket cruise control, but I believe so- if the cruise has a single wire to the sensor, wire that to one terminal of the VSS and the other terminal to ground.
This is the sensor from a '93 Dakota.
5S4691__ra_t.jpg
It allows you to retain your cable drive speedometer, as opposed to some other years that that don't have a cable throughput. It threads directly onto your trans speedo drive, but may require a bit of floorpan "clearancing" with a BFH; it gets pretty crowded down there in some situations. The cable output of the VSS is not sized the same as the trans. output, but a cable from the same years as the sensor will fit the sensor and a '68 and up speedometer head.
CA-3027_1__ra_t.jpg