All 8 springs, with powder coated grey/silver ones, then wrapped in heavy black nylon spring condom things. The internals were re-valved and overhauled internally to match the spring rates, vehicle weight, and ride style. Nothing was done externally, the stock spring spacers and adjustment rings were still in good shape.
After another 5k or so miles since the upgrade, shocks still work well, still better than stock, no buyer's remorse here.