I have a 22' arctic fox and I want to upgrade the axles to go from 15" tires to 16" tires. Any advice or guidance on how to proceed is greatly appreciated. My current wheels are 5 x 4.5 x15".
Call your axle manufacturer and get what you need. Probably AL-KO or Dexter. Probably just new hubs and drums. And honestly a new axle drum to drum may only be a few $$ more. Easier to Craig's list your old stuff drum to drum.
And if money is easy consider going disk brakes.... :B