A 3 row on a 96 would take some significant re-engineering.
The simplest route would involve a 95 quick tach. You have to redo the head lift, as a 96 used cylinders not under the feederhouse, but off to the side, off the right axle.
The right axle may need to be narrowed, as the wheel base may be too wide to clear the corn.
The tongue MAY work, but they were non adjustable on a 96, and just cleared the platform- which had the feederhouse on one end.
If you saw a 96 with a 3 row, or any row, it was not a factory deal... and it wasn't simple to set up, either.