The fan in now straightened, and the grease fitting has been installed. I will pick up a can of Chevrolet Engine Orange, and put the finishing touches on it tomorrow. Then reassemble and test. If all goes well after testing, I will fill the shaft with grease so there will be no more rusting of the shaft, and the bushings will be well lubricated.
To install the grease fitting, you need to drill into the center shaft between the two bushings. Then disassemble a right angle grease fitting, and install the bottom part first. Then install the angle fitting, and tighten. All that is left to do now, is to adjust the lower half in a direction that is easy to get your grease gun onto the fitting. I will be using a extreme pressure (EP) molybdenum disulfide grease for this application. Once a season greasing should be enough and with this high quality grease, if you forget, there is plenty of residual supply in the shaft.