I found a set of ProComp Rock Crawler 6 lug rims 15x10 with BF Goodrich AT tires size 31 x 10.5 with a 4.5 back spacing. I was wondering if they would have any problem fitting on my 1986 4Runner?

im sure they will fit but a 10.5'' tire on a 10'' wheel will look like a balloon and make your 4runner look like a roller skate. i'd look for 8'' width wheels at he least. stock should be 6''.

Here is the link to the wheels. Do they look like 10" rims?

http://losangeles.craigslist.org/lgb/pts/431697972.html