could have sworn the post I just listed was to be view'd under the proper location.and that's not the classified section. wanted to know how 21 inch wheels are installed on model t axel's,what is needed to make this change. sorry for the [MISTRAKE].
I believe the 21 inch hubs are the same and will fit on any spindle/axle.
As Tim says, there is no difference in the way they mount.
Richard, are you thinking about installing 21" model A wire wheels or changing from non-demountable clincher wheels to 21" demountable clinchers?
In your mistaken "Classifieds" posting, you mentioned putting 21" Model A wheels on a Model T. Here you just asked about 21" wheels. That's a whole different thing. You need adapters to put Model A wheels on a Model T.
Another issue with T 21" is the brake drum, 26/7 had the larger drum, that would need to be swapped out for a earlier year T. Some 25's had the option of 21" wheels but I'm not sure on the brake drum transition from 25 to 26/27