Steering wheel

I have an 18" wood one that came with my truck. Judging by the wear on the wood and the fading it's been there for a while.
It's similar to this wheel right here.
http://www.bigrigchromeshop.com/Merchant2/merchant.mvc?page=BRCS/PROD/SWPW/HT-PB9804

Changing diameters shouldn't be a problem although you might have to purchase a hub adapter kit when purchasing the new wheel they're about $100 depending on what you go with and the year make and model of truck. Only other issue I see is you'll have an extra 1/4-1/2 crank when you turn once again no big deal.