Probably everybody knows by now that I purchased a 2004 Tundra DC 4wd. I love it. When I drove it for the first time, I knew why I have selected Toyota since 1990 for my truck of choice. When I purchased the truck, I bought aftermarket 17 x 8's wheels by Enkei which also makes the truck look that much better obviously. Toyota put the Dunlop 265/65/R17's back on the truck with the Enkei's and it didn't look right to me. So, I went to Discount Tire and purchased a set of 285/65/R17's which looked a whole lot better with more sidewall of the tire showing. I was sitting here yesterday thinking about my spare tire which is a 265/65/R17. What would happen if I put that tire on the truck with a size differential in the tires being a 4wd? :cry: Not too good. Honestly I don't know what would happen if tire was mounted to the truck and then put into motion under load. It couldn't be good that's for sure. So, the spare tire is getting upgraded to the same size tire as the truck is currently running. I thought I would pass this along as something to think about.