Lets see, the center of the cab (measuring from the inside of the floor plates is 32.5".
Its an old worn floor mat, to be replaced one day, so a couple items stabbed in to show you, Drill at center of the cab...PS and DS mounting holes to be 3 3/8" to either side of center....Now drill two mounting holes, one for each ear on the bracket.
Test fit and kinda wiggly for a couple big bottles of water or soda, so, off to the junk box for a short third leg...mounted on the back of the drink/cup holder and another hole established for the floor mounting ear.
Pretty spiffy, bolted down and no wiggles. And, room for a real short legged gal to pull the seat forward, or scooch the barrel of a spare hunting rifle down in-between the seat and the drink holder on a long trip.
View from the drivers seat, locked and loaded and ready for a ride....all necessaries in easy reach and not spillin on my seat.
Woops, looks like I missed some old French fry gunk in the middle, guess I'll swab it out again before I call it done.