1973-1984 cab floor clutch rod hole size

[BIGJAKE97]

I put a 1978 4x4 automatic cab on a 1978 4x4 frame with a sm465. I found the 3 dimples in the floor where the 1973-1984 clutch rod goes through the cab floor. I know the clutch rod goes through the middle dimple and the two outer dimples are for the little bolts that hold the clutch rod boot, but can someone please tell me what size the center hole that the clutch rod goes through is suppose to be? Thank you