I recently acquired a Dearborn 239 Y-block that I want to put a 57+ distributor in so that I get rid of that pesky Load-A-Matic distributor.

While comparing the two distributors, the distance from the base to the gear is the same as expected but as many of you probably know, the gear count is 13 wear-as the later are 14 tooth. And I can't change camshafts as the 13 tooth ones are a larger diameter cam bearing.

So as the title states, is there a trick to removing these gears? It looks like it just a roll pin that is peened over that would need to be drove out and the gear can then fall right off. I'll be installing a new TSP distributor if that changes anything.

Thank you

Tim