Oklahoma Ingersoll 4118AH SN14172644

[Spike188]

@dhitching Thanks you for the photos and confirming that there is a variation in plates..

The notched plate has been installed to the extreme left and right then taken out and reversed. Neither options worked.

I will post some follow up pictures of the different PTO lockouts on the two tractors. The Oklahoma tractor originally had the galvanized hinged lock. The donor has a bolted stop to prevent reverse engagement. Both options would for preventing deck moter failure due the abruptly changing direction of rotation.