I've been looking at putting a flashier set of rims on my '94 Roadmaster wagon. I love the stock look of my Roadie Aluminum's but they're a little bit rough. I've been thinking about Impala SS rims, which are 17" or perhaps a set of Torque Thrust 2's, or one of the various clones of TT2's. I like the idea of staying with 15" so that I don't impact that cushy ride in any way. I definitely won't get rid of my current rims, I just want to try a change for a while. I'm having some trouble determining just what will and won't fit on my car. I've located a seller with some Eagle Alloy rims (pic below) that I sort of like. The price is good but they're a couple of hours away in Barrie so I can't just swing by and take a look at them. The bolt pattern is right, of course, but they are larger than what I'm running now. I have 225/75R15's on 15x7 rims. He's selling a relatively new set of BF Goodrich 235/70R15's Radial TA's on 15x8 rims for $800CDN. He claims that they're fine for a Caprice but I prefer learning things for myself (Or at the very least asking here where I know I'll get a good answer). I've looked at several tire sizing forms on the web and I don't think I'll have any problems. I think most of us know that I'm more than a bit of a noob so I'm not entirely sure that I came to the right conclusion. Had anyone found a good resource for learning about tire/rim sizing and what directions you can grow/shrink into without issues?