3 speed bolt head size (1 Viewer)

[Scott68FJ40]

I have looked through all the manuals that I have and I can't find anywhere that tells me what the bolt head size is for the bolts that hold the tranny to the bell houseing on a 3 speed FJ-40. I need to pull mine and all of my metric sockets stop at 18mm.

 

[IDave]

I am 95% certain it is a 19 (done this twice).