Update your semi truck with a reliable way to secure a transmission to a vehicle chassis, with the HME Chassis Hex Flange Crimped Transmission Nut Kit that ensures you're Ready for the Road Ahead. To ensure a transmission is properly bolted into place, this replacement kit features a range of nuts that tightly fasten the connecting bolts from the transmission to the chassis. Built with a top-tier locking mechanism to unwanted loosening from vibrations. FleetPride is your First Click in Heavy Duty.