I wanted to get a tac in this beast and there was a stock option for one. I got one out of the local junk yard. here is the dash as it came to me. If you look at the center there is a star patteren no tac.

Here is a view looking up at the stock no Tac guage.

You have to remove the bezel. to do so the head light switch knob and windshiel wiper knob must come off. this is the stock cluster. still no tac

it was easier for me to complete this swap at the table. here is the stock cluster.(Mine has a crack in the middle it came this way so i wanted to swap it out too.

here is the back side of the stock cluster. (you can see where the TAc goes in the center. there is no provision for the wiring on this circuitboard so i wanted to swap it out too. you can swap the whole cluster but this was cheaper for me and faster.

Here is a better picture. i removed all the light bulbs and the circuit board screws. the 4 holes used to hold the star patteren and now will hold the tac. You can see the "New" circuit board above the cluster. Look at the middle and see the new tac connection.

Here it is all done and looks factory.

here is a different view. the tac works fine ford used a universal harness so all i did was swap the circuit board and installed the tac. and plugged it back in and it was ready to go.