Ford re-approached this Shim in 1937, adding high bosses and upgrading the material to dense rubber. The result – a superior Shim that fits snugly into the dash sheet metal to insulate bolts, eliminate squeaks and mitigate annoying vibration. We naturally followed Ford’s lead and designed our own Shim to deliver the same exceptional results. Don’t wait until your dash paint starts to chip and replace your old worn Shim.