For 1990-2009 cars

(1) | Goodwrench® Tag Location
(2) | Year
(3) | Not Used
(4) | Remanufacturing Site Code
(5) | Serial Number
(6) | Julian Date
(7) | Year Remanufactured
(8) | Model
(9) | Transmission Identification Plate Location
(10) | Model Year
(11) | Line Build
(12) | GM Production Code
(13) | Julian Date
(14) | Shift
(15) | Model
(16) | Serial Number in Base Code 31
(17) | W = Warren Assembly Plant
(18) | W = 4T60E, B = 4T65E
(19) | Model
(20) | Vehicle Identification Number (VIN) Derivative Stamping Location