Rugo

Here's a pic of the donut as it came out of my truck with the tank. It's ~2" dia x 1" thick with a hole to fit the 1/4" NPT pipe nipple (~3/8" OD). As far as I can tell the tank has never been removed prior to me taking it out, so the donut should be similar to what you need. It's a one-piece donut.
gas tank outlet donut

Hope that helps.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.