Part Notes: 2WD, 6.4L, Front Heavy Duty Shock (SFB), Crew Cab, Long Box;4WD, 6.4L, Front Heavy Duty Shock (SFB), Crew Cab, Long Box;4WD, 6.4L, Front Heavy Duty Shock (SFB), Crew Cab, Short Box, With Rear Air Shck, With Off Rd;4WD, 6.4L, Front Heavy Duty Shock (SFB), Crew Cab, Short Box, With Rear Air Shck, Without Off Rd;4WD, 6.4L, Front Heavy Duty Shock (SFB), Mega Cab, With Rear Air Shock Or With Off Road