That tach cluster is 1976-77, based upon the unleaded fuel gauge, the colored volt gauge, and the 100 MPH speedometer. 1975 would have a uncolored voltage gauge, otherwise identical. The 1973-74 would have a 120 MPH speedometer, a fuel gauge sans unleaded fuel only, and a uncolored voltage gauge.
1975-77 GP's GA's Can Ams and 1977-79 Phoenix could have had the fuel economy gauge optioned.
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1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey
1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles
2017 Sierra SLT 1500 Z71 4X4 
2019 Canyon SLT Crew 4X4 
Last edited by 77 Canamman; 09-21-2019 at 02:52 PM.
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