1650JS isn't listed on JBA's site to fit my 68.
They list:
<TABLE id=Shorty cellSpacing=2 cellPadding=4 border=0><TBODY><TR><TD vAlign=top align=left colSpan=3>
Shorty Headers
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Product
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Application
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Part #
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1 5/8” Natural Stainless steel Mid length
</TD><TD class=applicationBox vAlign=top align=left bgColor=#cccccc>All
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1650S
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1 5/8” Silver ceramic coated Stainless steel Mid length
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1650SJS
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1 5/8” Titanium ceramic coated Stainless steel Mid length
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1650SJT
</TD></TR></TBODY></TABLE>
If it's the 1650SJS that's quite a steal.