Let's see some cars with s/s springs

295-55-15's 6 1/2 " back space and axle narrowed 2" a side.
Also moved back 3/4 " , mini tubbed and springs relocated to under the frame rails.
I don't have the room of the later Darts and needed a 3/8ths " spacer on each side to get enough clearance on the leafs.
You won't get much more in an early A body with out cutting the wheel wells.