If you get some rough measurement I will see is there is anything here Norm as I don't know the width of the hub ,there
is an old balancer here somewhere that looks similar to the pic below and is solid steel ,alloy may be too
expensive, thinking about It, I could cut the end off an alloy oxy tank ,can't remember how thick they are maybe 19 mm. might
be a few here. Probably have some steel tanks to cut the end off.

I wasn't thinking of using alloy ,for a more robust and long-lasting solution, steel would likely be the better choice.

Strength and Durability: Steel is generally stronger than aluminum and can handle more stress and wear over time. If you expect the spacer to take a lot of load and stresses, especially while mowing, steel might be the better option.

Cheers
Max

Attachments
alloy.png (59.94 KB, 28 downloads)
chev balancer 1967 327.png (261.83 KB, 28 downloads)