ok so im thinking about buying some new wheels

problem is I dont know if the tires i have now will fit on them... i'm running stock wheels now. not sure what size that is. I want to get a set of crager soft 8s will these tires fit? I plan on upgrading them in a couple months... so im hoping i can get the wheels now while i still have the money. help!
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03 Sport - SEMI DIGGERIZED, Surco Rack with Daylighters, OME Lift, Runcool Hood Louvers, RL Front Bumper and Super Skink Sliders, 31" BFG AT/KO on Soft 8s, Skid Row/Mopar Skids, 8k Smittybilt Winch with Synthetic Line.
MY BUILD: viewtopic.php?f=3&t=59628