Grant steering wheel issue

I bought a Grant steering wheel with the 3314 install kit for my '70 Duster and have an issue with the metal 'block' piece that slides over the steering shaft splines... When I torque the steering shaft nut the copper contact plate on the back bottoms out on the turn signal switch and binds up the steering. It looks like my steering shaft sits a little too far down in the column. Is there any way to pull it out a little so I can torque the nut properly without it binding up?