31x10.50x15, they are not OEM size but its what the PO had on it when I got it. The spare is the correct size but its also on an OEM rim, I debated pulling a set of original rims of a junkyard Raider I found locally just so everything matched but the Toyota rims that are on mine are wider, and frankly I was too lazy to lug a jack out to the back of the junkyard to get the other ones lol.

1989 Dodge Raider V6
2001 Jeep Wrangler 4.0L
2008 Toyota 4-Runner SR5 4wd