Originally Posted by Dantforth
DavidY.....not that it matters now as I decided no to take these but they were "75" profile which is narrower than the "70" profile that came on it. I am still looking.
75 is the aspect ratio which relates a tire's width to the height of it's sidewall....a 75 has more sidewall than a 70 (taller sidewalls typically provide a softer ride, but won't handle as well). The first number is a tire's width in millimetres. For winter tires, you should stick with the stock width of 225 or go down to 215. A 235 tire is 10mm wider than stock.
In winter or slick conditions, I typically turn AdvanceTrac off. It's more predictable that way IMO.