Another wrench in the mix...
You are correct that the high speed solenoid assembly is on the opposite side of the drive pulley.
So.... after some more digging into the doctrine ('62 parts catalog and the '53 & '57 Duo Service Manual), two things are evident:
<ol>
<li>The intermediate shift rod remained the same for all 36" Duomatic transmissions (17676), and translates as an exact match to the Dexter PN - 9497-007-000 </li>
<li>The hi-speed shift rod CHANGED half way through the 36" Duomatic run, and appears to have changed starting in 1956. I don't know the exact reasons on why it changed but some of the part numbers for the internal transmission parts do change slightly starting with the 1956 models</li>
</ol>
<ul>
<ul>
<li>It seems that Philco did convert the Bendix PN for the original style rod (17677) to their numbering conventions - 9497-14 </li>
<li>The updated 1956 and later shift rod was Bendix PN 600851, which seems to still be in the Dexter parts system as 9497-006-000</li>
</ul>
</ul>
You may want to order the 9497-006-000 rod and see if it works? Unfortunately I don't have an early Duo to see what the differences are between the early and later shift rod, nor do I have access to the 1956 Duo service manual to see if they explain the differences/changes to the transmission.
Ben
http://https//www.pwslaundry.com/i-6687481-dexter-9497-006-000-rod.html

You are correct that the high speed solenoid assembly is on the opposite side of the drive pulley.
So.... after some more digging into the doctrine ('62 parts catalog and the '53 & '57 Duo Service Manual), two things are evident:
<ol>
<li>The intermediate shift rod remained the same for all 36" Duomatic transmissions (17676), and translates as an exact match to the Dexter PN - 9497-007-000 </li>
<li>The hi-speed shift rod CHANGED half way through the 36" Duomatic run, and appears to have changed starting in 1956. I don't know the exact reasons on why it changed but some of the part numbers for the internal transmission parts do change slightly starting with the 1956 models</li>
</ol>
<ul>
<ul>
<li>It seems that Philco did convert the Bendix PN for the original style rod (17677) to their numbering conventions - 9497-14 </li>
<li>The updated 1956 and later shift rod was Bendix PN 600851, which seems to still be in the Dexter parts system as 9497-006-000</li>
</ul>
</ul>
You may want to order the 9497-006-000 rod and see if it works? Unfortunately I don't have an early Duo to see what the differences are between the early and later shift rod, nor do I have access to the 1956 Duo service manual to see if they explain the differences/changes to the transmission.
Ben
http://https//www.pwslaundry.com/i-6687481-dexter-9497-006-000-rod.html
