I always ran wagon springs in the rear. And if the frame had two holes for the trailing arm mount, I'd put the bolt through the upper hole. The 396 on the front springs pulled the front down obviously more than the current 327, but the front is still lower than the rear and the cars always looked better. The Super Sport had cut springs and looked tough. But they have lowering springs the are a better deal all around now. So, no spindle changes.