I have been looking for a source for these drums for years. We have long carried and sold pulleys, clamps and springs for the simple, cable controlled steering systems but could not find drums until now.
The steering drum is moulded from an impact resistant reinforced polycarbonate and suits 1/4" coated ss wire or Spectra.
The drum fits a 3/4" dia shaft. There is socket for a 3/16" x 1-1/8" dowell pin.
I had been mulling over how to wrap the cable/rope around that steering drum I bought from Duckworks. Just came across a diagram that spelled it out and wanted to share it and perhaps you`ll make it available to others.