Description
Description
These heavy duty lowering shackles are for the rear of 1999-2022 Ford F-250/350/450 trucks, both 2wd and 4wd models. Unlike most other lowering shackles on the market, we manufacture these from 1/4" laser cut steel and DOM tubing. These use a Polyurethane bushing with a grease zerk and a heavy duty zinc plated inner sleeve. With the installation of these, the user will notice a slightly softer ride do to the longer shackle allowing the leaf spring to flex a little more easily. There are 3 hole locations for the leaf which will allow the user to adjust the drop amount. When used with OEM leaf springs, the hole locations will give you 1/4", 7/8" or 1.25" of drop. Aftermarket leaf springs may respond differently. These bolt in using OEM hardware. Payload is not affected. These come standard in a powder coated finish. As always these are proudly manufactured in house here in the wonderful USA!
The installation of these lowers just the rear side of the leaf spring. This will change the angle of the leaf spring/axle/pinion angle. Trucks with a top mounted overload spring will have the overload engage sooner/differently. Its possible the pinion angle change can cause a vibration. This can be counteracted with the use of pinion shims purchased separately. Trucks running overload air bags will have to modify/change the mounts to accommodate the reduced height.
