Not sure what the difference between yours and the 5285 I got. But when I did the math with a 7/16 stud 5/8 of a turn is what I came up with for preload on mine. I called Chris Straub, and he said I could go up to 1 and 1/4 turns with mine. I just readjusted them the other day and went from a 5/8 of a turn to 7/8 of a turn. They are nice and quiet now, and it almost seems like I picked up some power.