Aircraft, vibration isolation assemblies, and methods of assembling vibration isolation assemblies are provided. An aircraft includes a fuselage, a mounted component disposed within the fuselage, and a vibration isolation assembly disposed within the fuselage and mounting the mounted component to the fuselage. The vibration isolation assembly includes a mounting track, an inner member, a support fitting, and an elastomer. The mounting track defines a cavity and an opening. The inner member has a post and a flange, where the flange is disposed in the cavity. The support fitting is secured to the post and the mounted component. The elastomer is disposed between the flange and the mounting track within the cavity.