Theoretically, yes you can, HOWEVER, your speedometer will need to be recalibrated, as with the larger tires, you will be going faster. The original tires on a 2001 tracker I believe are 205 75 r 15, so if you are travelling 55 mph on your speedometer with 225 75 r 15, you will actually be doing 57.4 mph. Not really a big deal, but if you get an overzealous police officer radaring and you are doing 60 in a 55 zone, you will actually be doing 62.6 mph and it may get you a ticket, fines and higher insurance rates. If you used a 225 65 r 15 or a 255 75 r 14 tire (unfortunately meaning a smaller rim size and more cost for new rims), you won't have to recalibrate your speedo, but you will lose some tire height by going with the 65's, which is what I'm going to assume you are after by going to the larger tire. Also, watch for larger, wider tires rubbing on inner fender wells during sharp turns too, it's an easy way to get premature tire wear. Hope this helps!
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my tires say P205/75R15 - i believe the 3 #'s of interest are 205, 75, 15.
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