when a crank is turned down .020 on the mains how much material is normally removed from the thrust surface on the center main? I am specificly referring to my drag car SBF but the question could also apply to an FE. I am refreshing the motor over the winter. I found crank journals and bearings like new except for rear side thrust bearing overlay wiped out with .020+ endplay. the crank surface looks fine.when measuring the thickness of the good thrust bearing side it appears that a new thrust bearing is still going to leave about .012 end play, to much for my liking. So, my question is, is there a special .020 thrust bearing with thicker trust sides? would a .030 bearing have the thicker sides, then I could work the journal surface of the bearing down to fit the crank. I want to avoid machining this nitrided, fine balanced crank that looks perfect after 750+ passes