Show That Lowered A-body!
Last year I bought my wife a 72 Valiant on Ebay. The previous owner had removed all the leaf springs except the main one, then put 4 inch lowering blocks between the rear and the spring! Sorry, but that did not work for me at all. The rear bottomed out, destroyed the shocks, dented the gas tank and handled like a brick.
After replacing the springs with HD 6 leaf units, removing the blocks, replacing the fuel tank and installing new shocks, I raised it back up 8-10 inches. Here's the "before" and "back to stock" pics: