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 BUICK Full Size Apollo, Skylark (includes special through 1972)            excl Sportwagon 64-66 KG4516 KG5507 Sportwagon 64-66 KG4516 KG5521            excl HD suspension & Sportwagon 67 KG4516 KG5507            w/HD suspension 67 KG4516 KG5504 Sportwagon 67 KG4516 KG5521            excl Sportwagon 68-69 KG4513 KG5504 Sportwagon 68-69 KG4513 KG5521 70-72 KG4513 KG5504             excl HD suspension 73 KG4514 w/HD suspension 73 KG4514 KG5504 74-79 KG4514 Century, Special (from 1973) Station Wagon 73-77 KG4513 73-77 KG4513 KG5504 78-81 KG4513 Electra, Park Avenue, Le Sabre, Roadmaster (excl electronically adjusted suspension) Station Wagon 70 KG5507 Station Wagon 71-76 KG4514 KG5507             excl Station Wagon 71-76 KG4514 KG5504 Station Wagon 77-96 KG4514 KG5507 All RWD models excl S/W 77-85 KG4514 Roadmaster Sedan 92-96 KG5507 Regal, Grand National             excl Grand National 78-87 KG4513 Grand National 84-87 KG4513 Riviera 71-78 KG4514 KG5507