1938 UL tank bungs

[spudzylla]

Hi, my name is Mike Braley and I am a new member of the AMCA.
I am currently working on a 1938 UL and need to identify the correct right side tank.
I am including 2 pics of 2 ul right side tank bungs. Would someone please identify the years of each?..thanks Mike

[Chris Haynes]

Factory photos show the welded bunghole on the '37, '38, and '39. Lets see all of that tank with the swedged fitting in the bottom. It may be an XA tank.

[Matt McManus]

The left picture is the correct one for 37-39 U models using petcocks on each tank, The right tank looks like a later tank (1940-) that has had the fuel line nipple cut off.

[spudzylla]

More 38 ul pics

Here are a couple more pics..thanks Mike

[Matt McManus]

is the bung in the same position on both tanks? If it is then you have one 37-39 ul tank and one 40-46 ul tank with the fuel line nipple removed. If the red tank has the bung near the outside edge of the tank and further towards the rear than the other you have a XA tank. The hole for the petcock will also be lager if it is an XA tank. It will be the same size as the petcock hole on a stock 37-39 left ul tank that uses the reserve petcock.

[spudzylla]

Thanks for the info. The distance is the same and the hole is the smaller right side size. It had an original petcock screwed in. When I looked closer, it seems like the nipple might have been removed. I know the matching (red) left side is a later model that
has been made to look like a 38 by filling in the threaded shut off apparatus that goes thru the tank in front of the shift gate. I found that out by sticking my finger in the filler hole and feeling the bondo (or lead) from the inside. I figured the nipple might have been removed but wasn't sure.