ENGINE IDENTIFICATION 1976 Model Code DESCRIPTION 292 6 CYLINDER C50 60 S60 Manual Trans ARD C50 60 S60 Manual Trans w Low Compression Eng ARK 350 8 CYLINDER C50 Manual Trans exc Exh Emission Control TMT C50 Manual Trans w Exh Emission Control AAM C50 Nhnual Trans w Low Compression Eng AAD C60 S60 Manual Trans exc Air Brake Exh Emission Control TMX C60 S60 Manual Trans w Air Brake exc Exh Emission TWA C60 S60 A T 475 exc Air Brake Exh Emission Control TMU C60 S60 A T 540 exc Air Brake Exh Emission Control TMW C60 S60 A T 540 w Air Brake exc Exh Emission Control TMZ T60 Manual Trans exc Exh Emission Control TWC T60 A T 540 exc Exh Emission Control TWB C60 S60 Manual Trans w Low Compression Eng AAH C60 S60 Manual Trans w Exh Emission Control oxo Air Brake AAA C60 S60 Manual Trans w Air Brake Exh Emission Control AAB C60 S60 A T 475 w Exh Emission Control exc Air Brake AAC C60 S60 A T 540 w Exh Emission Control exc Air Brake AAF C60 S60 A T 540 w Exh Emission Control Bi Air Brake AAJ T60 Manual Trans w Exh Emission Control AAK T60 A T 540 w Exh Emission Control AAL 366 8 CYLINDER C60 65 M65 Manual Trans w Air Brakolaxc Exh Emission Control AHD D S60 Manual Trans exo Exh Emission Control AFA c55 M55 M T 6406 6506 exc Exh Emission Control AHH C60 65 A T 540 w Air Brake exc Exh Emission Control AHJ S60 A T 540 exc Exh Emission Control AFB C60 65 A T 475 exc Exh Emission Control AHL T60 65 Manual Trans exc Exh Emission Control AHU T60 65 A T 540 exc Exh Emission Control AHW C60 65 S60 M65 Manual Trans w Air Brake Bi Exh Emission Control AHX C65 M65 M T 6406 6506 w Exh Emission Control AHY C60 65 S60 A T 540 w Air Brake Exh Emission Control AHZ T60 65 Manual Trans w Exh Emission Control ATB T60 65 A T 540 w Exh Emission Control ATC C60 65 M65 Manual Trans lexc Air Brake Bi Exh Emission Control AKK C60 65 A T 540 exc Air Brake Exh Emission Control AKL C60 65 S60 M65 Manual Trans w Exh Emission Control axe Air Brake AKM C60 65 S60 A T 540 w Exh Emission Control exc Air Brake AKR 427 8 C YLINDER C 65 M65 Manual Trans exc Exh Emission Control AKA c65 M65 M T 6406 6506 exc Exh Emission Control AKB TGS Manual Trans exc Exh Emission Control AKC T65 M T 6406 6506 exc Exh Emission Control AKS C65 M65 Manual Trans w Exh Emission Control AKD C65 M65 M T 6406 6506 w Exh Emission Control AKH T65 Manual Trans w Exh Emission Control AKJ TGS M T 6406 6506 w Exh Emission Control AKX D 12