Equip your semi truck to be Ready for the Road Ahead™, with the Fuller- Transmissions Shift Lever Housing Gasket, a crucial component for transmission shift lever housings. This replacement component creates a leak-proof seal between the shift tower mating surfaces, using a layer of silicone beading to provide a tight seal that prevents contamination. Engineered with premium-quality materials to deliver optimal protection to the transmission. FleetPride is your First Click in Heavy Duty®.