Picked a crank off bay, pitted/ no chrome? Have additional bb cups on the way / 4 sets total However the crank from 39 parts bike did have a spacer on drive side bearing race. Kind of remember the race has to be thicker to move arm off frame but so far I don't have one. Had the 41 marked crank and one so polished date ineligible, but wanted 36 date. Will just have to wait and see. I bought old painted drop center morrow wheelset for 36 but dated closer to 48 bike I own. Must have taken it apart 6 times already....