My 95 Atro van is leaning to the drivers side especially at the rear wheel. I have repalced the shocks and it still bottoms out over a bump.

Shock absorbers don't hold a vehicle in the air - they absorb shocks. Springs hold the vehicle up. You rear ones should be leaf springs and maybe the same as the S10 pickup. If one was broken, why didn't you notice it when you installed new shocks?

there are a number of air shocks (inflating rubber type) for around 200-500 kits you could install. Type air shock Chevy astro in google, too many to list here-

I only recently noticed the listing. I replaced the shocks because it was bottoming out on bumps. This has been a fairly recent situation. I guess next step is to look at the rear springs

I know this is a different vehicle, but Jeep CJ's used to have a problem with their spring shackles. You might put an eyeball on the shackles to see if all the bolts are still installed and they are not bent sideways-

I will be crawling under tomorrow to have a look. Thanks