What are the 4 letters on the blue memcal under the cover in the computer you have from the 1993 donor. (BAMY?) Also which PCM came out of the 1993 truck? Last 4 numbers of the service number... Is it a 7060 or one of these (8625, 6395, 7427, 6390)

BAMY memcal is for a 7060 PCM