These are all the parts you need to convert from Vacuum to mechanical linkage. Includes slidebar, J shaped bracket to attach to center carb, linkage slidebasr to rear carb, long arm for driver's side of rear carb, all bolts, and parts needed. Includes new set of torsion springs for end carbs. Specify GTO or Full Sized Pontiac when you add item to cart. There is a difference in the kits. Kit does not include the long rod and clips for the passenger side. It is available, in the shopping cart, should you need it. This long rod on passenger side is the same one used with vacuum linkage cars, so you may already have it.