I've got a '78 pacer front end with new coil springs, shocks and brakes. Still able to walk into a parts store and get them!! The rear has the original under springs and over helper springs. I've got a 10 bolt 3/4 ton rear end. I boxed the frame in the engine area as well as at the rear end. Rear shocks are heavy duty chevy style, fore and aft. I've been thinking of changing the rear end to a 1/2 ton to see if that will make any difference.
Thanks for the input.
Wayne