The strength of the C4 forward planetary has become an issue with the ever increasing loads that racers are subjecting this transmission to. With this new six-pinion planetary, the load capacity is doubled. Taking this one step further is our low-drag planetary set. This will yield both an increase in torque capacity, along with a savings in wasted horsepower. By replacing the stock thrust washers throughout the assembly with high-quality needle bearings, friction is greatly reduced. This includes all components of the planetary system, including our Part #527600 six-pinion forward carrier and has been machined as a set for proper clearances.