Recently got ahold of a 1973 Eldorado hardtop. 104k miles nice,original shape. Just 1 problem. The power seat is not working. It is in the position up against the rear seat, all the way back. Upon observation the seat motor does have power and tries to operate when the switches are operated..It just grunts and dims the interior lights.. The seat appears to be cable-driven in numerous places. So there must be a transmission?gearbox? The previous owner actually clamped a 2x4 block to the gas pedal!! Just wondering, before I pull the seat. Any help would be appreciated.