<div dir="ltr"><div>Hi Patrick,</div><div><br></div><div>I checked a table of gearbox part numbers in my archives, but part number 1B3474 is not listed. Is it possible this is from a very early BN1?</div><div><br></div><div>If any experts on this list have the specifications for part number 1B3481, you could compare those to the gear you have.</div><div><br></div><div>Regards,</div><div><br></div><div>Harold Manifold</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Jun 2, 2026 at 8:18 PM Patrick and Caroline Quinn <<a href="mailto:p.cquinn@outlook.com">p.cquinn@outlook.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Greetings<br>
<br>
Just started looking through a couple of boxes of 100 BN1 parts that came my way a year of so back.<br>
<br>
I was surprised that at the bottom of one of the boxes was a 100 BN1 laygear or clustergear.<br>
<br>
It is in very good condition and is stamped with the part number 1B3474.<br>
<br>
The number is familiar, but can anyone verify it for me please?<br>
<br>
Hoo Roo<br>
<br>
Patrick Quinn<br>
Blue Mountains, Australia<br>
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