Are the body mount bushings the same for a 68-72 Cutlass as they are for a 68-72 buick skylark? Some kits have the cutlass, skylark, chevelle and lemans all listed for the same kit yet others have a different kit number for each individual car. The reason i ask is i found a full body bushing kit on the clearance rack at summit racing for 75% off but it only lists the skylark in applications. Thanks for any help.