I had a really hard time with the first pin I took out years ago.
This is MANY years before most heard of the internet ...
Actually we were using the Internet in (1968 and 1969 in Vietnam) and later 1970 ... it was called the ARPANET back then.
I had borrowed one of the removal tools but the pins were damaged beyond being useful so we made new ones.
Did not work very well ...
Then I noticed that the pins that Ford installed at factory are 15/64ths inch and the ones I made for the tool were 1/4 inch that is 1/64 larger than the original pins!
No wonder we had so much trouble.
I had measured the replacement pins as example and they were 1/4 inch (16/64ths) so the pins for tool were made to be 1/4 also.
If you read instructions for removal look on Snyders
by looking on their web site you will find their pins
(for the tool) are 7/32nds or 1/64 smaller than the 15/64ths original pins.