By design, the HiWay 8 SnapPads do not fit as tightly as the other SnapPads in our lineup. They have been specifically designed for 8" round HWH jack feet, which have attached springs. These springs on the jacks require the SnapPad to have larger cutouts to accommodate them. These large bracket slots are also present to accommodate any cross beam you may have between your front jacks. Though you may be able to move the HiWay 8 pads by hand, rest assured that SnapPads do not simply fall off – they must be knocked, bumped, or scraped off.