After I slid the coupler onto the steering box, I attached the column to the dash. The three bolts at the fire wall weren't installed at this point. There is supposed to be a foam seal at the base of the column to take up the gap between the steering shaft and the column jacket. I moved the base of the column around so the steering shaft was centered in the column jacket...so there wasn't any pressure on the foam seal. Once the steering shaft was centered, the three bolts at the firewall were tightened.