My (2) Cents again: 1978 is a Tran Am Transition Year (Yeah - Pun intended!) Hence the early 1978 tailight surrounds painted same color as rest of the body, and then Mid-to-late 1978's tail light surrounds painted factory "satin black". Both are correct for 1978.
With that in mind, I Drug out my worn copy of the Green 1978 GM PONTIAC SERVICE MANUAL and under section "Chassis Metal, Platics, Paint and Repair" page 2C-33 you will see "Fig. 2C-34 F Series-Trans Am-Decals" and on the shaker is.......drum roll please.....
a 6.6 Litre Shaker Decal. Now to be fair, this illustration also shows the 1977 style "Trans Am" drivers side decal placed on the front endura bumper. Like I said, 1978 is a Transition year, where "Horsepower & Handling" were available in a Trans Am. And now if you will all open your copy of our Firebird brother Michael Lamm's book "The Fabulous Firebird" and turn to page 142 and look to the lower left (2) Shaker Scoop illustrations please note the text as follows: "Trans Am's with the 400-cid V-8 that included the W-72 high-performance package had T/A6.6 on the hood shaker. The plain 400 and 403 carried 6.6 Litre." Now to add to the debate; the T/A6.6 appaers to be a "raised 1978 shaker Scoop" and the 6.6 Litre illustration appears to be from a 1979 Y-84 SE with the 403 Olds engine. And the text refers to the 1977 model years. So, as you can see...the exact decal situation is as clear as mud. Again, can you say "transition year"?
Thanks for the interest!
Keep Pontiacing!
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