I sold one of the front tire/wheel/tps packages from mine and kept the other for spare. Bought two new rear rims and had all four powdered. Bought two new TPS from Tire Rack, I think $72 each. Installed in new rims, put new Michelins 185/60-15's on all four. Inflated fronts at 26, rears at 30, re set the TPS switch on the dash and all is well. I don't think these are rocket ships and all that sofisticated.