ATVworks.com has a Mule carb rebuild kit for 39.95. Here is a link to their site: http://www.atvworks.com/search.asp?pg=1&stext=cr319&sprice=&stype=&scat=
ATVworks.com has a afterarket steering gear for sale for 299 and some parts by themselves. Here is a link to the site
http://www.atvworks.com/search.asp?pg=1&stext=steering+gear&sprice=&stype=&scat=