Illustrated Parts Breakdown (IPB) shows the tilt tube and associated parts for the '82 & '83 in the exhaust housing group. It's shown in the midsection group for '84.
The steering arm which connects between the cable and the motor is shown under steering connector kit.
That should get you most of what you need.
Try
http://www.ishopmarine.com/ishop/jsp....jsp?reqFor=29 and look up your engine (Evinrude & Johnson links just above Yamaha section).