17" Wheels on a 69 Dart with Stock Suspension

Just for kicks, I put a 265-50-20 tire on a 20x9" wheel under the Dart just to see what it would look like. The diameter was way too tall. The tire touched the front and back of the wheel well. However, the width looked really good. I had the rear end and springs removed but with the 1/2" Dr Diff spring relocation kit, the outside of the spring should be even with the inner wheel well lip. I had good clearance on both sides of the wheel well with the 265's. There is a member here(doesn't post much) who is running 285-30-20's on the back of a 68 convertible with stock wheel tubs.