I needed a 7inch wheel for my Aspen and picked up a set late model crown vic wheels that my 67 Olds hubcaps hooked to the inside of the barrel, if that helps.
All mopars except the dart, valiants and barracudas and later trucks used the 4.5 pattern. Lotsa Fords too, but the center hole is a different size. I'd argue with the Pontiac reference, but AppleKrate is the guru on these and the early Tempest is a strange bird.
It's true about the early Tempest. i used rims off my friends 63 Lemans for my winter tires on my 67 Mustang
Just to add to this..... Dart and Valiant used a 5x4 from 64-72. You might see some 73's with them, too (always the source of a fun debate). But, the 73 part isn't clear and typically you'll see 73+ use the 5x4.5. Also, there were earlier versions of the Dart and Valiant (pre 64) and to be honest, I do not know what bolt pattern they used. I suspect it is the larger one (5x4.5). But, that could easily be wrong so don't quote me on it. Barracuda's used a 5x4 from 64-69. In 70, they converted the Barracuda to the E-body platform and got a large bolt pattern (5x4.5) thereafter. Center hole on a Ford is slightly smaller than a Mopar. Everything else used 5x4.5 except the trucks as mentioned.
Jotha, the 60-62 Dart was a B full size (5X4.5"), the 61-62 Lancer and 61-63 Valiant are A body (5X4"). 15" wheels are not going to be found on many A's. I hope the OP won't get too confused by the body types. Let's face it, most wheels that are still on these early sixties cars in yards are shot by now. Try to find a 70s Mopar car with 15s. Trucks and vans may have them as wide as 8", but then you run into the hit or miss on the bigger bolt pattern, so cars are a safe bet.
He wants rims with the hubcap nubs on the inside like an early Ford - most of these have the bumps or nubs or whatever they're called on the outside like most later rims. The Dodge rims use spring clips to fasten the caps and I don't believe thy'll fit an early Ford cap either.
Thanks every body for the information,now if I can just find some in a bone yard, at least I have some where to start.This is a great site