The 6Pakā¢ Shocks (MetalcloakPatents.com) provides the longest shock travel relative to a compressed length for any off-road shock ever built in history, period. If you thought Coil-Overs were your next upgrade, think again. While the 6Pak is not a replacement for coil-overs, they could be your next step, providing the performance of a long-travel shock with the ease of a factory bolt-on shock.