Looking to level out the 4 runner a little, they all sag in the rear. I know that springs would probably be best, but I would like to find a listing for air shocks or diminsions if anyone has looked into or done it. Thanks in advance!~

I've looked into it. No bolt-in springs are made. You can get out the catalog and start measuring the dimensions - you'll get close, but will still have to do some fab...