The 1968 bracket is bare steel. The front half of the bracket is dipped in semi-gloss black paint, because it hangs down under the dashboard.
The 1969 bracket is not painted. The bracket was reconfigured to tuck up under the dash out of sight.
There are three components mounted under the dash. They are the relay, the solenoid and the vacuum motor.
The same relay is used for both years. It is part number C8ZZ-10B926-A.
The solenoid is C7ZZ-3D536-B during 1968 and switches to a C9ZZ-3D536-A in 1969.
This part is the tilt motor. The easiest way to tell the two years apart is the color. A black canister is the 1968 version. The white, 1969 version is shown here.
The steering box "rag joint" is shown here. It is unique to tilt cars.
The steering column allows the steering to "pop" away at a 45 degree angle when the door is opened. The tilt wheel is also adjustable in nine different vertical postions. These two features are always together and part of the unique column.
The column has a unique wiring harness as well. It has additional wires inside the column. When Ford consolidated parts in the 1970s, they found the Thunderbird, tilt steering, column harness would work. It is commonly called an "expaned application" part. This however leaves two unused wires where the column plugs into the main underdash harness.
The underdash components also have a unique wiring harness. This harness connects to the door switch and activates the tilt mechanism.