My experience is limited. I needed to replace the hardened distributor drive gear used in 216 and early 235 forged steel cam shaft engines with a gear compatible with the later cast iron cam shafts.
A more modern spring steel roll pin does the job nicely. No need for peening the ends.
Langdon's Stovebolt has the gears and the pins for this part of dizzy rebuild. The text books say a new camshaft should always include a new dizzy drive gear as they wear as a set.
