Hey there 99RodeoDude, welcome to the board.

Are sure about that rim size? Should it be 16 instead of 15? The reason I ask is that generally metric tires for 15 inch rims are for passenger cars, if you do find some in a suitable size make damn sure that is says LT265/75/15. If the tires don't say LT then they will not be the proper load range for your Rodeo. If you do have 15 inch rims you should be looking for standard tire sizes, such as 31/10.5 R15. If they are 16 inch rims then go ahead and look for LT265/75/16 or what ever size you would like.

JJ