Originally Posted by tclederman
3B,

The USA MPC shows them to be the same?
casting code 5450822
part number: 5453818

But, replacement parts are 1 1/4" bore and the MPC shows the original bore was 1 1/8" core (I think)?

NOTE added later:
morerog: I suggest following 3B's advice/information.The 1952 Specifications Manual confirms 3B's information (the 1953 Manual is unreadable). The MPC must be incorrect (Or, I am reading it incorrectly)?
Rears are the same side to side with the brake lines pointing straight out. The fronts are different in the direction of the brake line pointing as they angle for access and the side to side difference makes them both point the same direction. Wow! I hope I made sense with that explanation.