Hi. Its a well gap that you say looks uneven at all gs awd as I noticed. Michelin is the best choice - good that you have them on. As for the rim size - 7 and 7,5 is rims width, so the rims they offer match narrower tyres. Normally it is 225/50 R17 and these provide for 215/60 R17 I believe. I see no problem installing them as winter set when the narrower the better.