rear suspension problem

Today I was finishing up some work on my 69. I had the rear of car supported on rear sub frame with jackstands and the suspension relaxed. I started jacking up the rear end and the passenger side moves up a good inch before the driver side starts going up. Also I have noticed it looks like the passenger side rear sits a little lower than the driver side. Think the leaf springs are wore out?

without looking, it sounds like you hit the nail on the head.

Or the leaf spring bushings are worn out.

Unbolt your shocks and see if it still does it.