Honda rear hubs

It will fit on the axle yes

Ed3,

If that hub is from a 450r, it will work. Also keep in mind, Brand New 04-05 trx450r rear hubs can be had for $30 - $35 each complete with studs. Pick a different year, and the price goes up tremendously. The '06+ hubs are 3x the price

Thanks guys...

Do the Honda hubs narrow the ass-end up like the Yamaha hubs do?

I don't think so...
On the older threads I searched that was always a downside to using Yami hubs...
along with having the 4 on 115 pattern...
The main reason for switching is to have the most commonly available aftermarket selection which is the 4 on 110 Honda pattern.