What size are the nuts on the Shift cables? RT4WD

I need to figure out what size these nuts are. The ones on the shift cables, where they are attached to the bracket on top of the transmission. (This is 89 RT4WD) I know they are larger than a 22 mm, that's the largest wrench I have at the moment.
If anybody knows this, please let me know! This is the last thing keeping my engine in!
If anybody knows this, please let me know! This is the last thing keeping my engine in!
Comments
I think the ones that hold the mount to the transmission are 17mm, but the ones on the cables themselves are freakin huge. I was gonna put the vise grips on them, but I was worried about chewing them up. Might have to. Either that or go buy a few wrenches.