Quote Originally Posted by Doug427 View Post
Roger, that's great stuff you just posted there. One of my ongoing questions has been how to properly stagger the tire sizes to get "the look" that I'm after, the correct stance. If I may ask further, is this also done with a difference in wheel diameters as well? For example, maybe a 15x6 in the front and a 17 or 18x10 or 12 in the back? How do most guys do that? Is there a commonly used formula with certain wheel sizes and tire sizes?
I spent most of one car show season focused on wheels & tires, looking for the stance and overall "look" that was pleasing to my eye, then taking notes on the tire sizes to put numbers to pictures. More than once I was asked, "Excuse me, but what the heck are you doing?" On my '33 I ended up with BFG P285 70R15's rear, and Firestone F560 145R15's front. Both are available only from Coker, and Coker's quality control is not what it used to be, IMO. Also, I had to grind down the calipers in the rear to fit inside the Cragar's. Tires for 15" wheels are getting more & more scarce, other than off-road aggressive treads and light truck tires.

Here's a link to a really handy list of tire sizes grouped by OD that Ryan (40FordDeluxe) posted some time back, that's very handy - http://tire-size-conversion.com/tiresizes/ It's fairly current on tires that are available on the market today, but doesn't embrace specialty places like Coker, Micky Thompson, Hoosier, etc.

For availability and ready replacement on the road I'd go with 16's front, and 16's or 17's on the rear; then shop for tires that give you the rubber rake you want. Just my $0.02.