Cradle Mounts 92 Transport

Has anyone here replaced their cradle mounts ? One of mine is pretty much totally gone and you can see & feel the whole cradle frame move. Well, I thought if one is bad the others can't be far behind so I'd just go ahead & replace'em all. The mechanics of the job seem easy enough, doing one at a time but the only place I found that has parts is the dealer. Of course they're special order and the price is outrageous. $ 60.00 per corner. This seems like an awful lot for a couple of big rubber washers. I haven't had any luck getting after market ones. Can anyone help ? It's a 92 Transport. Even the part #s would help so I could see what I'm looking for.

YOu are talking these big washers between sub frame and unit body..right?
...mmm...I think if/when that comes of an issue with mine, I'm going to recycle old tires....