No, I am going to run the Caltracs (plus 9 way Rancho rear shocks) with just stock V8 leaf springs on the '69 Dart. If that setup doesn't work as well as expected, I'll change the stock leafs out for mono leafs. The Super stock springs are still on the Charger R/T, which I have mothballed for now. I wouldn't run Caltracs with Super stock springs, since they have such a large arc and don't work as well with Caltracs.