10R80 Transmission Rebuild Kit Parts

The 10R80 transmission has been put to the test on the drag strip time and time again since it's appearance in the 2018 Ford Mustang. Stock clutch failure has been a common occurrence as horsepower has been increased and the limits have been pushed. Raybestos Powertrain is proud to have been first to market in 2019 with the first set of 10R80 performance clutches. GPZ friction clutches have proven to handle increased horsepower and have helped produce dozens of under 9 second quarter mile track times.
The 10R80 transmission platform is now more than five years old. Luckily for Mustang and F-150 racing enthusiasts, Raybestos Powertrain did not stop its 10R80 innovations at enhancing the friction material alone. Drag racers continue to put their 10R80 transmissions to the test and are pushing into the 1,500-horsepower range. Raybestos Powertrain engineers have continued analyzing clutch failures and identifying 10R80 OE design flaws. Throughout this time the weakest clutches within the 10R80 transmission have proven to be found in the D, E, and F clutch drums.
The engineering team not only sought out to simply design a solution for these clutch drums but chose to solve the problem in a way that proves to be efficient and more cost-effective to transmission rebuilders. Raybestos Powertrain has chosen to provide drop-in increased-capacity clutch pack solutions for the D, E, and F clutch. Savvy 10R80 transmission rebuilders have spent countless hours making machined modifications to the transmission drums to achieve increased clutch capacity through adding friction and steel clutch plates in each drum. On top of this time-consuming effort some builders have also chosen to machine down the thickness of the steel clutch plates to also aid in the fitment of additional friction clutch plates. Machining steel clutch plates will certainly help achieve the desired goal of fitting additional clutch plates into the D, E, and F clutch drums; however, this often causes harm to the friction clutch plates. Machining steel clutch plates can cause an abrasive steel surface finish that is unseen to the naked eye. This abrasive machined steel surface causes premature wear to the friction clutch plate that it sits against.