Button Head Bump Stops (9.9116G) by Energy Suspension®. Quantity: 2 per Pack. Bump Stops from Energy Suspension are designed to provide necessary protection against damaging impacts to your leaf springs, struts, ball joints, control arms, shocks, and much more when the end of suspension travel occurs over large bumps. Upgrade and replace your original degraded rubber bump stops with durable polyurethane construction that resists deterioration from road grime, oil leaks, and salt slush better than rubber.