MODEL YEAR FRONT REAR Premium Super Gas-A-Just Premium Super Gas-A-Just Twin-tube Mono-tube Twin-tube Mono-tube Oil Gas Gas Oil Gas Gas When sold out use alternative part #          When sold out , part # no longer available Ford Truck (USA) Bronco II 83-1.89 KG5440 2.89-9.89 KG5440 KG5487 10.89-90 KG5487 Econoline (excluding Motorhome Chassis) 61-67 554130 (KG5438) KG5401 68-74 KG5419 E100, E150 75-91 KG5410 KG5414 E250, E350 incl HD & Camper conversion 75-91 KG5406 KG5421 F100, F150 (2WD) 65-69 KG5406 KG5419 70-79 KG5406 KG5414 80-83 KG5440 KG5442             excl Lightning 84-96 KG5440 Lightning model 94-96 KG5440 F100, F150 (4WD) 70-76 KG5421 77 KG5421            excl Quad shock option and Super Cab 78-79 KG5421 Quad shock option - rearward mounting of the axle 78-79 KG5421 Quad shock option - frontward mounting of the axle 78-79 KG5421 Super Cab 78-79 KG5421             excl Quad shock option 80-89 KG5440 Quad shock option - rearward mounting of the axle 80-89 KG5440 Quad shock option - frontward mounting of the axle 80-89 KG5439             excl Quad shock option 90-96 KG5440 Quad shock option - rearward mounting of the axle 90-96 KG5440 Quad shock option - frontward mounting of the axle 90-96 KG5439