Ok, I just bought a oil temp gauge (NOS late 60' to 70s) and according to the old catalogs I found online it takes a 362-AA (60's catalog) which crosses over to a 362-DA ('78 catalog) and finally crosses to a 280-EB sending unit in a late 80's catalog. The gauge face is 100-325 deg, according to catalog those sending units range from the 100-325 face (362-AA), the 140-350 (362-DA)and the 280 max face (280-EB). Does anyone know which one will work if I can't find the original 362-AA or on another question what about the sending unit for a B&M trans temp gauge as the face on those are 100-350.