Here's the cap for late 30s-40s road draft tube, later version had no cap, added oil via cap on valve cover.

for some reason can't upload photo?

Last edited by JiMerit Boltr#43; 02/04/2022 8:24 PM.

It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed