Kelly,
Don't be too concerned about this information, 'cause you apparently have a title that some motor vehicle department issued, and that is absolutely the most important thing!
While it would be nice to figure out which side of the "introduction of the Tornado changes" your truck was produced (a couple of good photos of the engine compartment side of the middle of the firewall would be helpful for this), so much part, body and frame swapping by previous caretakers has occurred with these trucks over the years that pinning down the precise date of manufacture is not all that important.
Something -- at least to me -- seems a bit odd about the suffix of your serial number: too many (six) digits.
There really isn't all that much information currently available for the serial number suffix sequences of the 1962 models.
Tables are available to look up the 1961 model year, and the '63, '64 and '65:


All of the suffixes for these are only 5 digits long.
There should be another frame stamping on the top of the passenger frame rail near the rise just in front of the rear axle.
Here's where it's located on the FC-170 frame, and it is likely similarly located on the pickup frames:

Don't be too concerned about this information, 'cause you apparently have a title that some motor vehicle department issued, and that is absolutely the most important thing!
While it would be nice to figure out which side of the "introduction of the Tornado changes" your truck was produced (a couple of good photos of the engine compartment side of the middle of the firewall would be helpful for this), so much part, body and frame swapping by previous caretakers has occurred with these trucks over the years that pinning down the precise date of manufacture is not all that important.
Something -- at least to me -- seems a bit odd about the suffix of your serial number: too many (six) digits.
There really isn't all that much information currently available for the serial number suffix sequences of the 1962 models.
Tables are available to look up the 1961 model year, and the '63, '64 and '65:


All of the suffixes for these are only 5 digits long.
There should be another frame stamping on the top of the passenger frame rail near the rise just in front of the rear axle.
Here's where it's located on the FC-170 frame, and it is likely similarly located on the pickup frames:

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