i have seen alot of people having problems upgrading to alloy rims from steel because the steel tpms dont fit the alloys and toyota is tryin to rip us off by selling the correct sensors for 110.00 each. well i found a guy on ebay selling the sensors 98 for all 4 i bought a set last week and they work perfect. they are brand new too. here is the link for any interrested. these will fit the alloy rims. not the steel rims.