Does anyone know what the proper size for the u-joint is on the tilt steering wheel columns ? My friend's 68 has wicked play in the steering and we have narrowed it down to the u-joint. I was hoping to have the part in hand ready to go one once we get it all appart. I don't want to have to take it all to pieces to find out which u-joint we need then wait for 4 days until the new one shows up in the mail.