Did you try:
CurrentDb.Execute "DELETE * FROM tblA"
DoCmd.TransferDatabase acImport, "dBase IV", "C:\Databases\DBF-A.dbf", acTable, , "tblA", False
CurrentDb.Execute "DELETE * FROM tblB"
DoCmd.TransferDatabase acImport, "dBase IV", "C:\Databases\DBF-B.dbf", acTable, , "tblB", False...