Broken seat springs

Can also try the crimp type they use in fence repair. Also in different sizes. Slide in each end and crimp together.

Thanks for yet another excellent idea. What kills me is the junk yards don't value the interiors on these cars enough to roll up the windows on them, but as soon as you show some interest, those seats with their dry-rotted covers, crumbly foam, and soaked cotton are worth their weight in gold, even though the spring units are all rusted to thunder.