harleyKmodel

I know that there are differences between the internal front brake parts for 1952-3 models and the post 1954 models. However, can someone tell me if are there any differences between the front hubs/ brake drums between these year models?
Thanks.

the rear drum and the front hub are the same. the shoes, backing plates, pivots and cams are different

I think the front half brake drum/hub is the same through 63? This picture is from the 59PB.

Thank you!

The -49, -52 Shoes are aluminum -54 and up steel. Just for reference. I think the early Rear drum may be slightly different...

-49A shoes are steel and use wider cam and pivot, they are the same through all the short frame years '54 to' 63 front and '54 to '70something rear the '52 and '53 used the aluminum shoes and a narrower cam and pivot the backing plates are also different the rear drum is the same but on some KH's the sprocket is different
I think the word "or" makes the parts illustration is misleading as these parts are not inter-changeable
this is just by my memory if you can find a later parts book it will list the year application