Automatic transmission flexplate mounting bolts secure the flexplate to the crankshaft and are typically replaced when a new flexplate is being installed in place of one that is cracked or has tooth damage. These flexplate mounting bolts are designed to match the fit and function of the original equipment bolts on specified vehicles. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Ford F-250 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022] - [Ford F-350 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022] - [Ford F-450 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022] - [Ford F-550 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022]