« Reply #60 on: September 15, 2011, 11:55:42 AM »
I don't claim to be an authority on the subject, but I did own several Trans ams between 77-79 and they were all either brand new or slightly used. Back then the 6.6 Ltr decal was what you saw if the car had the lower performance Pontiac 400 or the Olds 403. The higher output Pontiac 400 always had the T/A 6.6 decal. The cars I remember not having any decals on the shaker were those with the chevy engine, and there were a few. ...
I'll agree with you on 77 and 79, but not on 78. The 1978 T/A I bought in July of 1978 had just been offloaded from the transport truck when I first saw it, because the dealer called me as soon as it was delivered. It did not have a shaker callout decal and it was the Pontiac 400 (L78), since I had insisted on having a Pontiac engine.

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Herrel
77 T/A, W72, auto, black
77 T/A, Y82, W72, auto, project
79 T/A, auto, project
78 T/A, T-tops, WS6, 400, auto, Marty; SOLD
78 T/A, hardtop, 400, auto, Marty; SOLD