Ok, so I install a two speed fan from a '93 taurus with a derale 16749 control unit. It works too good. The fan stays on constantly. When I first connected the wiring, once the temp called for the fan to kick on, the relay chattered like it did not know whether to stay engaged or not. I recently went back to the jy and removed a CCRM from a '93 taurus in hopes of connecting it to the fan. Has anyone done this? I am curious to know how you did it. I have a '86 and the ECU obviously does not have the proper connections to fully integrate this module. Just sort of getting an ECU from a later Bronco, what are some good options?