I'm looking for rear brake shoe return springs for my 1954 Chevrolet 4100 1½-ton truck.
The Chevrolet parts catalog lists these under Group 5.026:

3694516 — short/green, 3 7/16″ overall length

3694799 — long/black, 3 7/8″ overall length

I need four of each. I've searched quite a bit through NOS suppliers, eBay, aftermarket catalogs and forum discussions, but have come up empty on an available replacement.
Has anyone found a source or successfully used another spring on these brakes? When parts get this difficult to find, what options have you used? I'd be interested in proven cross-references, having springs reproduced, or any other practical solutions.

Any leads or firsthand experience would be appreciated.
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