Yes, they are still out there NUMBER 2

[Terry,OH]

It is possible the clutch plate is stuck to either the pressure plate or the flywheel and not releasing, since the car sat for a long time. There are several threads here about freeing the clutch plate without removing the transmission. On Ford cars all three fingers of the PP have weights that act to exert more force against the clutch when the engine RPM exceeds about 2,000, to minimize any slipping. All three fingers have adjustment screws at the throw out ends of the fingers for adjustment so they all act at the same time. I would GUESS the Lincolns also had the weights and screws. I do not believe tractor PP's have the weights and may be without the adjustment screws.