If using the standard Ford p/n 5553 kit the instructions say to only go 10 turns for the p/n 51459 half threaded insert but with the 51457 you will need to go 20 turns to cold roll the bottom few threads to lock the insert in place. Requires sealer 6020. You would also need setting tool ring 51484A if you don't have it on your setting tool, this is included in the 5553FL kit.