I am told that the steerer is shorter than average, so I guess that is where the mm's are missing.I think you're going to struggle - where are the missing 3mm though? The headset in the picture looks like a fairly average stack one, it even has a spacer in.
Those measurements were provided by my bike shop, but today they have told me it needs a low stack height of 30mm or lower..I mean in your original post the steerer length minus the headtube length was 33 mm, but now it is 30 mm.
Hi there, I have no idea but likely! do you know what the stack height is of your headset?Is it an impact 1 inch headset? If so I’ve got one that I’ve just taken off a 1996 bike. Original bearings are tired - but are replaceable, and depending on what is wrong with your it might swap in or provide a replacement part.