please dont kill me, looking for rear leaf shackles

Leadfoot said

I just checked. They're $45 bucks on E-Bay and it hurt my eyes to look at them. It was like looking at the sun. If you're thinking shackles are it for now, just go get a piece of 1-1/4 x 1/4 flat bar and a drill bit. Make your own for about ten bucks. In the past I've found that on a Mopar, all they do is flatten the spring out due to the ratio of spring before and after the axle. I'd hate to see you spend the bucks on something that may not work. I'd also consider unbolting the rear shackles and mocking it up with a block of wood to see if it will even work in the first place.

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This has been my experience also with tired springs. Plus to get a 1 inch rise I found I needed about 3 or more extra inches of shackle. You know how much body sway comes with that? Just about enough to cut the sidewalls on a hard corner. Plus it doesn't take long and the bushings pop out.
Take a good look at your rear shackle mounts, and shackle angle. Instead of extended shackles, perhaps you can re-engineer that mount, and cure the shackle angle at the same time. It has worked for me in the past.
But really you should re-engineer the whole shebang.

And leadfoot's mock-up idea has also worked for me.