Dimensions of factory Rallye Wheels?

Well, we went with the GoodYear Polyglas RWL G70x14 tires on new 7x14 Rallye Wheels with 4.25 backspace (made by Specialty Wheel) on the rear of our 95% original "blue collar" '70 Duster 340. This rear tire and wheel leaves a strong 3/4 inch clearance to the stock HD leaf springs. (Sure happy we didn't go with 15" on the rear, because the 14's fill the side profile of the wheel well just fine!). We also put E70x14 on 6x14 Rallyes with 4.0 backspace on the front. Wow, we really like the appearance of this combo. We will try to get a side photo posted, so everyone can use it as a reference.