OK, thanks for the assistance. From what I measure, my steerer tube is 144mm from bottom of crown race to top, my frame head tube is 104mm, so that gives me 40mm. The brake cable mount and spacer that was on the old one come out to 5mm, the Tange headset calls out a height of 30.8mm, so if I add 4mm of spacer to that headset, I should be right in the ballpark, correct?