Well this turned out weird.
The guy said he felt insulted that I asked about the black stuff on the frame.
Then he backed out of the sale.
I have the screenshot if you guys wanna see it...
Hi,
I'm in the process to buy a 4runner and the frame is covered with stuff.
How do I look for rust on this?
Is it possible that it is fully rusted underneath?
https://imgur.com/a/0mmHssJ
Thanks!