The A7311 StableLoad quick-disconnect model with drill kit attaches to the vehicle's lower factory-installed overloads, causing leaf springs to come into contact sooner.
By activating the overloads sooner, handling improves and vehicle sway is reduced when towing or hauling.
The kit includes 4 StableLoads and a drill kit to outfit one vehicle.
A legendary lifetime warranty extends to vehicle leaf springs.
Proudly made in the USA.
Fits: 2005-2011 Ford E250/E350.
Notes: A7311 (WITH DRILL KIT) fits any passenger or commercial vehicle, Van, SUV, Truck, RV, etc., with rear leaf springs and lower overload spring.
The lower overload leaf can be identified by being on the very bottom of the spring pack, thicker than the rest of the leaf springs in the pack, and generally having a gap between the lower overload leaf spring and the upper leaf spring pack.
Drilling four 3/8 holes is required.
Specially treated drill bits & detailed instructions are included.