Part Notes: 2WD, 6.4 Liter, Ft Heavy Duty Shock (sfb), Crew Cab, Long Box;4WD, 6.4 Liter, Ft Heavy Duty Shock (sfb), Crew Cab, Long Box;4WD, 6.4 Liter, Ft Heavy Duty Shock (sfb), Crew Cab, Short Box, W/Rr Air Shck, W/O Off Rd;4WD, 6.4 Liter, Ft Heavy Duty Shock (sfb), Crew Cab, Short Box, W/Rr Air Shck, W/Off Rd;4WD, 6.4 Liter, Ft Heavy Duty Shock (sfb), Mega Cab, W/Rr Air Shock Or W/Off Road