Hi , Follow great video by Fordmerc guy, I did . I forgot to buy locktite, used nail polish ! (hope this hold out until i have to do brake pads). Torque required for centre nut I think exceed capabilities of my torque wrench so i did it up very tight with breaker bar and pipe. may look up require specifications next time. My humming noise is gone. Did not need puller kit ($109 SCA) , so will return this to shop for refund. Repco hub was $120, 36mm impact socket $30 SCA, 15mm socket required for 2x caliper bolts