Going through some boxes the other day, found the following. Pics below; this is the standard replacement C-3003K from Cloyes,
On your crank gear you can heat it slightly, don't have to get it cherry red. Standard Gear puller will pull it off with no damage to the crank snout. Same with putting the new one on, heat slightly and the press on.
You Tube is not shy on its demonstration of incompetence, but there are several out there that show proper procedure on doing things like changing gear sets, etc...
Check that part number. Its good if you need a set for a Buick 350.