Those sidewalls are way too short...
For a 15" wheel, you should be going with a 60 sidewall tire. You shouldn't be worrying about "lowpro" crap. You need to properly size a tire so that way it looks good on the car...
fixedI'd be more worried about the width than the sidewall, a 225 snow tire is a little bit wide, from what I understand you want a skinnier tire for snow to "cut" through it, a wider tire will instead "float on top of" the snow.
got springs just not installed to fill the gap:laugh: