I have had 2 Jeffcos, (same style trans) you will have to cut 3, 2.5 inch holes in tunnel for shift towers, and about a 6" slot near the center of the seats for shift levers along with a 5" slot running the same direction as the tunnel for reverse. Or cut out your tunnel and make tabs for d-zus fastners to remove for maint. I enjoyed mine, keep fluid clean and stay on top of shift pressure. Nothing better than pulling levers!