COMPATIBILITY – Fits 2004-2004 Ford F-150 Heritage; 1997-2002 Ford F-150; 2003-2003 Ford F-150 GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes EXCEPTIONAL HANDLING -- Full displaced valving, tuned specifically to each vehicle, adjusts to road extremes while the larger bore provides more efficient damping control to provide consistency and a smooth ride CONTROL AND DURABILITY -- PTFE-banded piston provides consistent sealing between piston and pressure tube for better control and increased durability REDUCED NOISE, VIBRATION AND HARSHNESS -- Twin Technology Active Control System delivers exceptional control under most driving conditions while isolating impact-related noise, vibration and harshness IMPROVES PERFORMANCE -- Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade CONSISTENT RIDE -- OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown BUILT TO LAST -- Self-lubricating fluid seal retains gas and reduces excessive friction against the piston rod to help reduce premature wear BUY WITH CONFIDENCE -- Comes with Monroe’s Limited Lifetime Warranty and exclusive Feel the Difference Guarantee