StudeM15A-20

 Passenger side differential case half and the spider and side gears

Side gear thrust washer = 3.565" OD

Side gear thrust washer = 2.5" ID

Side Gear thrust washer thickness = 0.057"

Side gear overall diameter = 4"

Side gear shank diameter = 2.3"

Side gear # of teeth = 20

Side gear axle groove diameter = 1.775"

Side gear # of axle grooves = 16

Differential gear # of teeth = 11

Differential gear bush inside diameter = 0.875"

Differential gear cross end/end = 5.9"

Differential gear cross diameter = 0.875

Differential gear thrust washer diameter = 1.824"

Differential gear thrust washer inside diameter = 0.9"

 Driver side case half w/ring gear, 35 teeth (pinion has 6, 35/6 = 5.83 ratio)

 Passenger side axle case half

 Pinion housing mounted to passenger side axle housing

Passenger side axle housing w/hub attached

 Drivers side axle half marked with "Timken 2200-D-264F"

 Passenger side axle case half w/pinion installed

 Pinion (6 tooth), inner bearing and rear pilot bearing

Passenger side axle half showing Studebaker  lazy "S" (not so lazy)