William,

The parking brakes may be released for towing by connecting the two brake release
connectors located near the right front fender beside
the brake diode assembly on the wiring harness. Connecting the connectors energizes the brake coil, releasing the friction disk. The following procedures detail
the removal and installation procedures for the parking
brakes.
Now this is if you have battery power. Without voltage you would need to unbolt brake assembly. The next year they installed a red handle just under the floor plate with a cable release. You can check just incase this was installed. Good Luck