Power steering column rebuild...?

Again very nice work. Is there a trick to removing the small pin that keeps the steering box coupler from pulling off the end of the steering shaft? Wondering if I can drive it out or just drill it... Might try putting a small socket in there between the shaft and the coupler and attempting to drive it inwards then it may be reusable with no potential damage to the coupler from drilling if it were to be slightly off center...