245/65-17, 255/65-17, 245/70-17, and 265/65-17 (depending on tread, if its on/off road tire with aggressive tread, it may or may not) if its on/offroad tire you could get wheel spacers from
Lift Shop :: THE LIFT MEISTER (Thanks to
Blckshdw to pointing me to it) and then could fit 265/65-17 or 255/70-17 here is tire sizes that fit/don't fit and says what is need if don't fit
http://gmtnation.com/f60/you-know-theres-going-will-fit-thread-255/ (Thanks to
Blckshdw to pointing me to it) also 265/65-17 on/offroad may fit without adapter but may need control arm may need grinded down a little