1964-67 GM A-body Chevelle, GTO, 442, GS, Body Mount top Cap. Factory correct rubber durometer (softness). Hardtop or Convertible These are all the body mounts from the front of the car to the back of the car. These are Factory correct with the correct rubber durometer (Softness). There are plenty of mount on the market but these are far better than the rest. Please look at the detail photos and see for yourself. These are rubber Just like the original - Not Hard Puck General Poly bushings from Energy Suspension. Rubber gives you a smooth soft ride - Poly gives you a hard stiff ride feeling every vibration from the engine trans and rear end. If poly was the way to do it the car companies would of already done it.