I have my original Delco Remy, 1968 Firebird, date coded, external regulated alternator for sale. Numbers on case are as follows: 1100700 55A 7H 3 12VNEG. Also stamped with XB 10 in black ink near top mounting ear. Turns freely, however bearings sound a little dry. Case is in good condition and should clean up nice after disassembly and bead blasting. PM me if interested or if you require additional pictures. $60 + shipping.