[maple_leaf_eh]

It seems Gary of Gary's Halftracks has retired, and his daughter has taken over the business. She had the tools we needed, and they are expected to arrive before week's end. Thank you all for your attention and suggestions.

When we get the volutes compressed and the tracks reinstalled, and the tool goes into the vehicle's kit, I will post the answers to my own questions. Dimensions, diameter, coarse or fine, TPI and grade if known.