Enhance your vehicle's transmission performance with these two packs of Lubegard Chemicals' The Original INSTANT SHUDDER FIXX 19689 #1. Used by professionals, these high friction modifiers are perfect for those who want to achieve a smoother and more reliable transmission system. With an unspecified length of warranty, this transmission treatment is a great investment for any car enthusiast. The product is compatible with various types of transmission fluids and is designed to work efficiently with high friction surfaces. Get your hands on these performance chemicals and experience the difference in your vehicle's transmission system. Quick, secure shipping.