[onlyifihadachevy]

There is no way to fix that to sit level. You could to get a new one which could make that side higher.
These would make it sit level.
Could take out the broken ones, would sit very low, and take the same amount of leaves out of the other side. Would ride very very soft and have a lot of sway. And may cause a ton of axle wrap. But could get you by.

Or go to pick-n-pull. And get the leafs both sides from the same truck but I wouldn't know the price for your area.

And if you have someone put it for you expect at least an hour labor.