Ford Friction Modifier Additive, Clutch Type Limited Slip Differential, 3.80 oz Bottle, Each

The Ford CM19546A1 Friction Modifier is a product designed for clutches in rear end limited slip or posi traction when using synthetic rear end oil. It is not for use in automatic transmissions and is specifically designed for Ford vehicles with limited slip or posi. It is recommended to use two bottles for a F350 Dually rear end. Customers have generally been positive about the Ford CM19546A1 Friction Modifier. It has been praised for its ability to eliminate chatter and noise in Ford vehicles with clutch type limited slip. One customer even mentioned that it worked 100% as expected in their 8.8 with a clutch type limited slip. However, there have been some issues with the packaging. One customer received the product with leakage, resulting in only half of the bottle remaining. Another customer noted that the smell of the product is quite strong and can permeate through multiple layers of packaging. In conclusion, the Ford CM19546A1 Friction Modifier is a great value product that effectively addresses clutch chatter and noise in Ford vehicles with limited slip. However, customers should be aware of potential packaging issues and the strong smell of the product.