Spacer. Leaf Spring Insulator. Mount plate pad. U - bolt.
Insulator used for the Leaf Spring.

Leaf Spring Insulator

Fits F-150 (2011 - 2024)

4WD, base payload. W/4WD, w/126" wheelbase. W/4WD, w/157" wheelbase. W/4WD, w/base payload.
Suspension Leaf Spring - Repair or Replace
Your leaf springs are not especially prone to failure, but excessive rust can make them more prone to failure. Contact your local Ford service department to have the suspension system in your Ford F-150 evaluated and have the leaf springs replaced if necessary.