No, but seriously, which shackle hole should you use when installing SuperSprings? It all depends on the preload tension you want. The higher the hole, the more preload tension you’ll get — which one’s right for you? For the full scoop and expert insight from our in-house engineer, make sure to subscribe to our YouTube: youtube.com/@superspringsinternational? #supersprings #truck #automotive #journeybetter #sumosprings #towing