66-69 B disc spindles
70-72 B/E disc spindles
73 up spindles

66-69 B Bendix calipers
70-72 B and 70-74 E KH calipers

66-69 B rotor Bendix

70-72 B/E rotors KH small bearing

73 up Rotor KH large, plus dia changes

Many combinations so you really need to determine what spindles you have. If 66-69 spindles that is your problem matching up either caliper or rotor. Both must be Bendix