Probably never. There are specific codes that are individual to each trans. Would make for to many forgeries as well.
We are reproducing about 60 different codes for the different GM car lines from 1968-74. BA BB BA BB OW BS BB BS BB CE CL CC CE CX CF CR CS CW CY CF CR CS CW CY CD CF CS OG OH OW OG OW OG OW OG OW OW OD PQ PX PY PQ PX PY PD PQ PC PR PY PX PR PW PQ PG PQ PQ PA Just to name a few... They will be available shortly
Proven wrong again! Will they be stamped with numbers as well? I guess since codes are listed several times they will be correct color for each year?