This is a high quality kit to convert from vacuum to mechanical linkage. Jon Havens made these up, after being frustrated with other kits available. The cost of these custom made pieces that are required to make the kit have sky rocketed .Includes all parts necessary to do the conversion with the exception of plated piece that is shaped like a triangle. That piece is the swing arm. You will use your existing for this conversion. I do have swing arm available for $90.00, inquire if needed.