John here's some info that might aid in your self-rebuild attempt on the vacuum wiper motors.

The original part number for the motors is listed as GM# 598989 and is listed as fitting all Truck applications for 1939-46.

A little web sleuthing found that "Trico" lists them as models "KSG 404 G" for the drivers side unit and "KSB 404 IG" for the passenger side unit according to info found HERE. Yeah, it's a Ferd board, but someone there has an original Trico Catalog, so provided the part ID info. smile

Here's a current evil bay ad offering NOS Trico gaskets for your model. At $10 a set, that's a great price IMHO. The listing shows 24 available, so maybe pull the trigger and save yourself the efforts of trying to cutout replacements.

I could not find any sources for the paddle seals, but I think Ficken probably can rebuild those for you. They just don't seem to sell rebuild parts by themselves.

Hope this is helpful? wink

PS - If you search evilbay, there are a few KSB 404 G motors offered that may be worth snagging if you have a mind to do that. smile
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~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
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